38980208440 has 64 divisors (see below), whose sum is σ = 88922188800. Its totient is φ = 15376253568.

The previous prime is 38980208417. The next prime is 38980208447. The reversal of 38980208440 is 4480208983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38980208447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2795967 + ... + 2809873.

It is an arithmetic number, because the mean of its divisors is an integer number (1389409200).

Almost surely, 2^38980208440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38980208440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44461094400).

38980208440 is an abundant number, since it is smaller than the sum of its proper divisors (49941980360).

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

38980208440 is a wasteful number, since it uses less digits than its factorization.

38980208440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14884 (or 14880 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 38980208440 in words is "thirty-eight billion, nine hundred eighty million, two hundred eight thousand, four hundred forty".