400465744 has 40 divisors (see below), whose sum is σ = 888157440. Its totient is φ = 171355008.

The previous prime is 400465739. The next prime is 400465801. The reversal of 400465744 is 447564004.

It is a congruent number.

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, 78042 + ... + 83014.

It is an arithmetic number, because the mean of its divisors is an integer number (22203936).

Almost surely, 2^400465744 is an apocalyptic number.

It is an amenable number.

400465744 is an abundant number, since it is smaller than the sum of its proper divisors (487691696).

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

400465744 is a wasteful number, since it uses less digits than its factorization.

400465744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5707 (or 5701 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 400465744 is about 20011.6402126362. The cubic root of 400465744 is about 737.0921580705.

The spelling of 400465744 in words is "four hundred million, four hundred sixty-five thousand, seven hundred forty-four".