400364564 has 12 divisors (see below), whose sum is σ = 701807988. Its totient is φ = 199848000.

The previous prime is 400364563. The next prime is 400364567. The reversal of 400364564 is 465463004.

It can be written as a sum of positive squares in 2 ways, for example, as 259467664 + 140896900 = 16108^2 + 11870^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 400364564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400364563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80867 + ... + 85674.

It is an arithmetic number, because the mean of its divisors is an integer number (58483999).

Almost surely, 2^400364564 is an apocalyptic number.

It is an amenable number.

400364564 is a deficient number, since it is larger than the sum of its proper divisors (301443424).

400364564 is a wasteful number, since it uses less digits than its factorization.

400364564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167146 (or 167144 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 400364564 is about 20009.1120242753. The cubic root of 400364564 is about 737.0300759678.

The spelling of 400364564 in words is "four hundred million, three hundred sixty-four thousand, five hundred sixty-four".