400455363 has 32 divisors (see below), whose sum is σ = 666911232. Its totient is φ = 207648000.

The previous prime is 400455359. The next prime is 400455371. The reversal of 400455363 is 363554004.

It is not a de Polignac number, because 400455363 - 2² = 400455359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400455363.

It is not an unprimeable number, because it can be changed into a prime (400455763) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 160695 + ... + 163167.

It is an arithmetic number, because the mean of its divisors is an integer number (20840976).

Almost surely, 2^400455363 is an apocalyptic number.

400455363 is a deficient number, since it is larger than the sum of its proper divisors (266455869).

400455363 is a wasteful number, since it uses less digits than its factorization.

400455363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 400455363 is about 20011.3808369138. The cubic root of 400455363 is about 737.0857889699.

The spelling of 400455363 in words is "four hundred million, four hundred fifty-five thousand, three hundred sixty-three".