404472738 has 16 divisors (see below), whose sum is σ = 856530720. Its totient is φ = 126893376.

The previous prime is 404472727. The next prime is 404472743. The reversal of 404472738 is 837274404.

It is a junction number, because it is equal to n+sod(n) for n = 404472696 and 404472705.

It is an unprimeable number.

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, 1982608 + ... + 1982811.

It is an arithmetic number, because the mean of its divisors is an integer number (53533170).

Almost surely, 2^404472738 is an apocalyptic number.

404472738 is an abundant number, since it is smaller than the sum of its proper divisors (452057982).

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

404472738 is a wasteful number, since it uses less digits than its factorization.

404472738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965441.

The product of its (nonzero) digits is 150528, while the sum is 39.

The square root of 404472738 is about 20111.5076013709. The cubic root of 404472738 is about 739.5424112830.

The spelling of 404472738 in words is "four hundred four million, four hundred seventy-two thousand, seven hundred thirty-eight".