38747040 has 96 divisors (see below), whose sum is σ = 123560640. Its totient is φ = 10205184.

The previous prime is 38747039. The next prime is 38747041. The reversal of 38747040 is 4074783.

It is a happy number.

38747040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38747039) and next prime (38747041).

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 38746992 and 38747010.

It is not an unprimeable number, because it can be changed into a prime (38747041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42267 + ... + 43173.

It is an arithmetic number, because the mean of its divisors is an integer number (1287090).

Almost surely, 2^38747040 is an apocalyptic number.

38747040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38747040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61780320).

38747040 is an abundant number, since it is smaller than the sum of its proper divisors (84813600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38747040 is a wasteful number, since it uses less digits than its factorization.

38747040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 38747040 is about 6224.7120415325. The cubic root of 38747040 is about 338.3863560494.

The spelling of 38747040 in words is "thirty-eight million, seven hundred forty-seven thousand, forty".