38157684 has 48 divisors (see below), whose sum is σ = 92444352. Its totient is φ = 12241152.

The previous prime is 38157661. The next prime is 38157697. The reversal of 38157684 is 48675183.

38157684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 37162 + ... + 38174.

It is an arithmetic number, because the mean of its divisors is an integer number (1925924).

Almost surely, 2^38157684 is an apocalyptic number.

It is an amenable number.

38157684 is an abundant number, since it is smaller than the sum of its proper divisors (54286668).

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

38157684 is a wasteful number, since it uses less digits than its factorization.

38157684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1134 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 38157684 is about 6177.1906235764. The cubic root of 38157684 is about 336.6619250168.

The spelling of 38157684 in words is "thirty-eight million, one hundred fifty-seven thousand, six hundred eighty-four".