104404520 has 32 divisors (see below), whose sum is σ = 256266720. Its totient is φ = 37965120.

The previous prime is 104404513. The next prime is 104404523. The reversal of 104404520 is 25404401.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 104404492 and 104404501.

It is not an unprimeable number, because it can be changed into a prime (104404523) 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, 118202 + ... + 119081.

It is an arithmetic number, because the mean of its divisors is an integer number (8008335).

Almost surely, 2^104404520 is an apocalyptic number.

104404520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104404520 is an abundant number, since it is smaller than the sum of its proper divisors (151862200).

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

104404520 is a wasteful number, since it uses less digits than its factorization.

104404520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237305 (or 237301 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 104404520 is about 10217.8530034445. The cubic root of 104404520 is about 470.8758678953.

Adding to 104404520 its reverse (25404401), we get a palindrome (129808921).

The spelling of 104404520 in words is "one hundred four million, four hundred four thousand, five hundred twenty".