400298056 has 16 divisors (see below), whose sum is σ = 760060800. Its totient is φ = 197615184.

The previous prime is 400298053. The next prime is 400298077. The reversal of 400298056 is 650892004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (400298053) 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, 316060 + ... + 317323.

It is an arithmetic number, because the mean of its divisors is an integer number (47503800).

Almost surely, 2^400298056 is an apocalyptic number.

It is an amenable number.

400298056 is a deficient number, since it is larger than the sum of its proper divisors (359762744).

400298056 is a wasteful number, since it uses less digits than its factorization.

400298056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633468 (or 633464 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 400298056 is about 20007.4500124329. The cubic root of 400298056 is about 736.9892622401.

The spelling of 400298056 in words is "four hundred million, two hundred ninety-eight thousand, fifty-six".