404412560 has 20 divisors (see below), whose sum is σ = 940259388. Its totient is φ = 161764992.

The previous prime is 404412557. The next prime is 404412583. The reversal of 404412560 is 65214404.

It can be written as a sum of positive squares in 2 ways, for example, as 195552256 + 208860304 = 13984^2 + 14452^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2527499 + ... + 2527658.

Almost surely, 2^404412560 is an apocalyptic number.

404412560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404412560 is an abundant number, since it is smaller than the sum of its proper divisors (535846828).

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

404412560 is a wasteful number, since it uses less digits than its factorization.

404412560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055170 (or 5055164 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 404412560 is about 20110.0114370927. The cubic root of 404412560 is about 739.5057327578.

Adding to 404412560 its reverse (65214404), we get a palindrome (469626964).

The spelling of 404412560 in words is "four hundred four million, four hundred twelve thousand, five hundred sixty".