104638992 has 40 divisors (see below), whose sum is σ = 274360416. Its totient is φ = 34358016.

The previous prime is 104638979. The next prime is 104638993. The reversal of 104638992 is 299836401.

It is not an unprimeable number, because it can be changed into a prime (104638993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13053 + ... + 19484.

Almost surely, 2^104638992 is an apocalyptic number.

104638992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

104638992 is an abundant number, since it is smaller than the sum of its proper divisors (169721424).

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

104638992 is a wasteful number, since it uses less digits than its factorization.

104638992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32615 (or 32609 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 104638992 is about 10229.3202120180. The cubic root of 104638992 is about 471.2281025129.

The spelling of 104638992 in words is "one hundred four million, six hundred thirty-eight thousand, nine hundred ninety-two".