38684493 has 16 divisors (see below), whose sum is σ = 57456000. Its totient is φ = 25724160.

The previous prime is 38684491. The next prime is 38684501. The reversal of 38684493 is 39448683.

38684493 is a `hidden beast` number, since 3 + 86 + 84 + 493 = 666.

38684493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38684493 - 2¹ = 38684491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38684491) 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, 10528 + ... + 13718.

It is an arithmetic number, because the mean of its divisors is an integer number (3591000).

Almost surely, 2^38684493 is an apocalyptic number.

It is an amenable number.

38684493 is a deficient number, since it is larger than the sum of its proper divisors (18771507).

38684493 is a wasteful number, since it uses less digits than its factorization.

38684493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649 (or 3643 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 38684493 is about 6219.6859245464. The cubic root of 38684493 is about 338.2041791217.

The spelling of 38684493 in words is "thirty-eight million, six hundred eighty-four thousand, four hundred ninety-three".