400536336 has 20 divisors (see below), whose sum is σ = 1034718992. Its totient is φ = 133512096.

The previous prime is 400536319. The next prime is 400536341. The reversal of 400536336 is 633635004.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4172206 + ... + 4172301.

Almost surely, 2^400536336 is an apocalyptic number.

It is an amenable number.

400536336 is an abundant number, since it is smaller than the sum of its proper divisors (634182656).

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

400536336 is a wasteful number, since it uses less digits than its factorization.

400536336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344518 (or 8344512 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 30.

The square root of 400536336 is about 20013.4039083810. The cubic root of 400536336 is about 737.1354657719.

The spelling of 400536336 in words is "four hundred million, five hundred thirty-six thousand, three hundred thirty-six".