400455364 has 12 divisors (see below), whose sum is σ = 717889788. Its totient is φ = 195344000.

The previous prime is 400455359. The next prime is 400455371. The reversal of 400455364 is 463554004.

It can be written as a sum of positive squares in 2 ways, for example, as 97416900 + 303038464 = 9870^2 + 17408^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220737 + ... + 1221064.

It is an arithmetic number, because the mean of its divisors is an integer number (59824149).

Almost surely, 2^400455364 is an apocalyptic number.

It is an amenable number.

400455364 is a deficient number, since it is larger than the sum of its proper divisors (317434424).

400455364 is a wasteful number, since it uses less digits than its factorization.

400455364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441846 (or 2441844 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 400455364 is about 20011.3808618996. The cubic root of 400455364 is about 737.0857895834.

The spelling of 400455364 in words is "four hundred million, four hundred fifty-five thousand, three hundred sixty-four".