404124556 has 24 divisors (see below), whose sum is σ = 796400640. Its totient is φ = 177766800.

The previous prime is 404124473. The next prime is 404124557. The reversal of 404124556 is 655421404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (404124557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146776 + ... + 149503.

It is an arithmetic number, because the mean of its divisors is an integer number (33183360).

Almost surely, 2^404124556 is an apocalyptic number.

It is an amenable number.

404124556 is a deficient number, since it is larger than the sum of its proper divisors (392276084).

404124556 is a wasteful number, since it uses less digits than its factorization.

404124556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296325 (or 296323 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 404124556 is about 20102.8494497671. The cubic root of 404124556 is about 739.3301437608.

The spelling of 404124556 in words is "four hundred four million, one hundred twenty-four thousand, five hundred fifty-six".