38457492 has 12 divisors (see below), whose sum is σ = 89734176. Its totient is φ = 12819160.

The previous prime is 38457487. The next prime is 38457499. The reversal of 38457492 is 29475483.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38457499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602384 + ... + 1602407.

It is an arithmetic number, because the mean of its divisors is an integer number (7477848).

Almost surely, 2^38457492 is an apocalyptic number.

It is an amenable number.

38457492 is an abundant number, since it is smaller than the sum of its proper divisors (51276684).

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

38457492 is a wasteful number, since it uses less digits than its factorization.

38457492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204798 (or 3204796 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 38457492 is about 6201.4104847204. The cubic root of 38457492 is about 337.5413524091.

Subtracting from 38457492 its reverse (29475483), we obtain a square (8982009 = 2997²).

The spelling of 38457492 in words is "thirty-eight million, four hundred fifty-seven thousand, four hundred ninety-two".