38157492 has 24 divisors (see below), whose sum is σ = 89258400. Its totient is φ = 12687136.

The previous prime is 38157487. The next prime is 38157563. The reversal of 38157492 is 29475183.

It is a nialpdrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 38157492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234 + ... + 8822.

It is an arithmetic number, because the mean of its divisors is an integer number (3719100).

Almost surely, 2^38157492 is an apocalyptic number.

It is an amenable number.

38157492 is an abundant number, since it is smaller than the sum of its proper divisors (51100908).

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

38157492 is a wasteful number, since it uses less digits than its factorization.

38157492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015 (or 8013 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 38157492 is about 6177.1750825114. The cubic root of 38157492 is about 336.6613603494.

The spelling of 38157492 in words is "thirty-eight million, one hundred fifty-seven thousand, four hundred ninety-two".