400353904 has 10 divisors (see below), whose sum is σ = 775685720. Its totient is φ = 200176944.

The previous prime is 400353901. The next prime is 400353913. The reversal of 400353904 is 409353004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400353901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12511044 + ... + 12511075.

It is an arithmetic number, because the mean of its divisors is an integer number (77568572).

Almost surely, 2^400353904 is an apocalyptic number.

It is an amenable number.

400353904 is a deficient number, since it is larger than the sum of its proper divisors (375331816).

400353904 is a wasteful number, since it uses less digits than its factorization.

400353904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25022127 (or 25022121 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 400353904 is about 20008.8456438646. The cubic root of 400353904 is about 737.0235345877.

The spelling of 400353904 in words is "four hundred million, three hundred fifty-three thousand, nine hundred four".