38857028 has 24 divisors (see below), whose sum is σ = 81094272. Its totient is φ = 15928704.

The previous prime is 38856977. The next prime is 38857069. The reversal of 38857028 is 82075883.

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, 29525 + ... + 30812.

It is an arithmetic number, because the mean of its divisors is an integer number (3378928).

Almost surely, 2^38857028 is an apocalyptic number.

It is an amenable number.

38857028 is an abundant number, since it is smaller than the sum of its proper divisors (42237244).

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

38857028 is a wasteful number, since it uses less digits than its factorization.

38857028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60371 (or 60369 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 38857028 is about 6233.5405669651. The cubic root of 38857028 is about 338.7062366362.

The spelling of 38857028 in words is "thirty-eight million, eight hundred fifty-seven thousand, twenty-eight".