38978856 has 48 divisors (see below), whose sum is σ = 120650400. Its totient is φ = 11136672.

The previous prime is 38978827. The next prime is 38978921. The reversal of 38978856 is 65887983.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38166 + ... + 39173.

It is an arithmetic number, because the mean of its divisors is an integer number (2513550).

Almost surely, 2^38978856 is an apocalyptic number.

38978856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

38978856 is an abundant number, since it is smaller than the sum of its proper divisors (81671544).

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

38978856 is a wasteful number, since it uses less digits than its factorization.

38978856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77358 (or 77351 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 38978856 is about 6243.3048940445. The cubic root of 38978856 is about 339.0598479452.

The spelling of 38978856 in words is "thirty-eight million, nine hundred seventy-eight thousand, eight hundred fifty-six".