400402200244 has 12 divisors (see below), whose sum is σ = 700919011044. Its totient is φ = 200139625664.

The previous prime is 400402200241. The next prime is 400402200277. The reversal of 400402200244 is 442002204004.

It can be written as a sum of positive squares in 2 ways, for example, as 322410467344 + 77991732900 = 567812^2 + 279270^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400402200241) 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, 15353959 + ... + 15380014.

It is an arithmetic number, because the mean of its divisors is an integer number (58409917587).

Almost surely, 2^400402200244 is an apocalyptic number.

It is an amenable number.

400402200244 is a deficient number, since it is larger than the sum of its proper divisors (300516810800).

400402200244 is a wasteful number, since it uses less digits than its factorization.

400402200244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30737234 (or 30737232 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 400402200244 its reverse (442002204004), we get a palindrome (842404404248).

The spelling of 400402200244 in words is "four hundred billion, four hundred two million, two hundred thousand, two hundred forty-four".