108638256 has 40 divisors (see below), whose sum is σ = 281405104. Its totient is φ = 36115200.

The previous prime is 108638251. The next prime is 108638261. The reversal of 108638256 is 652836801.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (108638251) and next prime (108638261).

It is not an unprimeable number, because it can be changed into a prime (108638251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16206 + ... + 21906.

Almost surely, 2^108638256 is an apocalyptic number.

108638256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

108638256 is an abundant number, since it is smaller than the sum of its proper divisors (172766848).

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

108638256 is a wasteful number, since it uses less digits than its factorization.

108638256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6109 (or 6103 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 108638256 is about 10422.9677155789. The cubic root of 108638256 is about 477.1565923558.

The spelling of 108638256 in words is "one hundred eight million, six hundred thirty-eight thousand, two hundred fifty-six".