104815638 has 12 divisors (see below), whose sum is σ = 227100588. Its totient is φ = 34938540.

The previous prime is 104815621. The next prime is 104815649. The reversal of 104815638 is 836518401.

104815638 is a `hidden beast` number, since 1 + 0 + 4 + 8 + 15 + 638 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2911528 + ... + 2911563.

It is an arithmetic number, because the mean of its divisors is an integer number (18925049).

Almost surely, 2^104815638 is an apocalyptic number.

104815638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

104815638 is an abundant number, since it is smaller than the sum of its proper divisors (122284950).

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

104815638 is a wasteful number, since it uses less digits than its factorization.

104815638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823099 (or 5823096 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 104815638 is about 10237.9508691925. The cubic root of 104815638 is about 471.4931208740.

The spelling of 104815638 in words is "one hundred four million, eight hundred fifteen thousand, six hundred thirty-eight".