404385924 has 12 divisors (see below), whose sum is σ = 943567184. Its totient is φ = 134795304.

The previous prime is 404385893. The next prime is 404385959. The reversal of 404385924 is 429583404.

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

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, 16849402 + ... + 16849425.

Almost surely, 2^404385924 is an apocalyptic number.

It is an amenable number.

404385924 is an abundant number, since it is smaller than the sum of its proper divisors (539181260).

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

404385924 is a wasteful number, since it uses less digits than its factorization.

404385924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33698834 (or 33698832 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 404385924 is about 20109.3491689811. The cubic root of 404385924 is about 739.4894969390.

The spelling of 404385924 in words is "four hundred four million, three hundred eighty-five thousand, nine hundred twenty-four".