404452928 has 28 divisors (see below), whose sum is σ = 875550192. Its totient is φ = 183841920.

The previous prime is 404452913. The next prime is 404452931. The reversal of 404452928 is 829254404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 404452891 and 404452900.

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, 286550 + ... + 287957.

Almost surely, 2^404452928 is an apocalyptic number.

It is an amenable number.

404452928 is an abundant number, since it is smaller than the sum of its proper divisors (471097264).

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

404452928 is a wasteful number, since it uses less digits than its factorization.

404452928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574530 (or 574520 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 404452928 is about 20111.0150912379. The cubic root of 404452928 is about 739.5303374784.

The spelling of 404452928 in words is "four hundred four million, four hundred fifty-two thousand, nine hundred twenty-eight".