400609604 has 12 divisors (see below), whose sum is σ = 737965200. Its totient is φ = 189762408.

The previous prime is 400609591. The next prime is 400609613. The reversal of 400609604 is 406906004.

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 3 ways as a sum of consecutive naturals, for example, 2635514 + ... + 2635665.

It is an arithmetic number, because the mean of its divisors is an integer number (61497100).

Almost surely, 2^400609604 is an apocalyptic number.

It is an amenable number.

400609604 is a deficient number, since it is larger than the sum of its proper divisors (337355596).

400609604 is a wasteful number, since it uses less digits than its factorization.

400609604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271202 (or 5271200 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 400609604 is about 20015.2342979042. The cubic root of 400609604 is about 737.1804097995.

The spelling of 400609604 in words is "four hundred million, six hundred nine thousand, six hundred four".