104139408 has 20 divisors (see below), whose sum is σ = 269026928. Its totient is φ = 34713120.

The previous prime is 104139397. The next prime is 104139419. The reversal of 104139408 is 804931401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (104139397) and next prime (104139419).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084738 + ... + 1084833.

Almost surely, 2^104139408 is an apocalyptic number.

It is an amenable number.

104139408 is an abundant number, since it is smaller than the sum of its proper divisors (164887520).

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

104139408 is a wasteful number, since it uses less digits than its factorization.

104139408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169582 (or 2169576 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 104139408 is about 10204.8717777344. The cubic root of 104139408 is about 470.4769686401.

The spelling of 104139408 in words is "one hundred four million, one hundred thirty-nine thousand, four hundred eight".