404325646 has 16 divisors (see below), whose sum is σ = 621183024. Its totient is φ = 197273664.

The previous prime is 404325577. The next prime is 404325667. The reversal of 404325646 is 646523404.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 144210 + ... + 146986.

It is an arithmetic number, because the mean of its divisors is an integer number (38823939).

Almost surely, 2^404325646 is an apocalyptic number.

404325646 is a deficient number, since it is larger than the sum of its proper divisors (216857378).

404325646 is a wasteful number, since it uses less digits than its factorization.

404325646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 404325646 is about 20107.8503575096. The cubic root of 404325646 is about 739.4527522023.

The spelling of 404325646 in words is "four hundred four million, three hundred twenty-five thousand, six hundred forty-six".