400612804 has 24 divisors (see below), whose sum is σ = 749403648. Its totient is φ = 186922560.

The previous prime is 400612787. The next prime is 400612843. The reversal of 400612804 is 408216004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49332 + ... + 56875.

It is an arithmetic number, because the mean of its divisors is an integer number (31225152).

Almost surely, 2^400612804 is an apocalyptic number.

It is an amenable number.

400612804 is a deficient number, since it is larger than the sum of its proper divisors (348790844).

400612804 is a wasteful number, since it uses less digits than its factorization.

400612804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106275 (or 106273 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 400612804 is about 20015.3142368537. The cubic root of 400612804 is about 737.1823726173.

Adding to 400612804 its reverse (408216004), we get a palindrome (808828808).

The spelling of 400612804 in words is "four hundred million, six hundred twelve thousand, eight hundred four".