400416464 has 20 divisors (see below), whose sum is σ = 886636704. Its totient is φ = 171607008.

The previous prime is 400416449. The next prime is 400416493. The reversal of 400416464 is 464614004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1787462 + ... + 1787685.

Almost surely, 2^400416464 is an apocalyptic number.

It is an amenable number.

400416464 is an abundant number, since it is smaller than the sum of its proper divisors (486220240).

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

400416464 is a wasteful number, since it uses less digits than its factorization.

400416464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575162 (or 3575156 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 400416464 is about 20010.4088913745. The cubic root of 400416464 is about 737.0619221163.

The spelling of 400416464 in words is "four hundred million, four hundred sixteen thousand, four hundred sixty-four".