400593216 has 28 divisors (see below), whose sum is σ = 1059903392. Its totient is φ = 133531008.

The previous prime is 400593209. The next prime is 400593223. The reversal of 400593216 is 612395004.

It is an interprime number because it is at equal distance from previous prime (400593209) and next prime (400593223).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 1043020 + ... + 1043403.

Almost surely, 2^400593216 is an apocalyptic number.

It is an amenable number.

400593216 is an abundant number, since it is smaller than the sum of its proper divisors (659310176).

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

400593216 is a wasteful number, since it uses less digits than its factorization.

400593216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086438 (or 2086428 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 400593216 is about 20014.8249055544. The cubic root of 400593216 is about 737.1703575548.

The spelling of 400593216 in words is "four hundred million, five hundred ninety-three thousand, two hundred sixteen".