104099904 has 140 divisors (see below), whose sum is σ = 316437264. Its totient is φ = 33820416.

The previous prime is 104099903. The next prime is 104099911. The reversal of 104099904 is 409990401.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (104099903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 222679 + ... + 223145.

Almost surely, 2^104099904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104099904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158218632).

104099904 is an abundant number, since it is smaller than the sum of its proper divisors (212337360).

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

104099904 is an equidigital number, since it uses as much as digits as its factorization.

104099904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 104099904 is about 10202.9360480207. The cubic root of 104099904 is about 470.4174712378.

The spelling of 104099904 in words is "one hundred four million, ninety-nine thousand, nine hundred four".