38978526 has 32 divisors (see below), whose sum is σ = 79491456. Its totient is φ = 12740000.

The previous prime is 38978507. The next prime is 38978539. The reversal of 38978526 is 62587983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79141 + ... + 79631.

It is an arithmetic number, because the mean of its divisors is an integer number (2484108).

Almost surely, 2^38978526 is an apocalyptic number.

38978526 is an abundant number, since it is smaller than the sum of its proper divisors (40512930).

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

38978526 is a wasteful number, since it uses less digits than its factorization.

38978526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its digits is 725760, while the sum is 48.

The square root of 38978526 is about 6243.2784656781. The cubic root of 38978526 is about 339.0588911011.

The spelling of 38978526 in words is "thirty-eight million, nine hundred seventy-eight thousand, five hundred twenty-six".