104020404 has 12 divisors (see below), whose sum is σ = 242714304. Its totient is φ = 34673464.

The previous prime is 104020393. The next prime is 104020409. The reversal of 104020404 is 404020401.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104020409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4334172 + ... + 4334195.

It is an arithmetic number, because the mean of its divisors is an integer number (20226192).

Almost surely, 2^104020404 is an apocalyptic number.

It is an amenable number.

104020404 is an abundant number, since it is smaller than the sum of its proper divisors (138693900).

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

104020404 is a wasteful number, since it uses less digits than its factorization.

104020404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8668374 (or 8668372 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 104020404 is about 10199.0393665286. The cubic root of 104020404 is about 470.2976897850.

Adding to 104020404 its reverse (404020401), we get a palindrome (508040805).

The spelling of 104020404 in words is "one hundred four million, twenty thousand, four hundred four".