400022204200 has 24 divisors (see below), whose sum is σ = 930051625230. Its totient is φ = 160008881600.

The previous prime is 400022204173. The next prime is 400022204209. The reversal of 400022204200 is 2402220004.

It can be written as a sum of positive squares in 3 ways, for example, as 276808567876 + 123213636324 = 526126^2 + 351018^2 .

It is not an unprimeable number, because it can be changed into a prime (400022204209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1000055311 + ... + 1000055710.

Almost surely, 2^400022204200 is an apocalyptic number.

400022204200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400022204200 is an abundant number, since it is smaller than the sum of its proper divisors (530029421030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400022204200 is a wasteful number, since it uses less digits than its factorization.

400022204200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000111037 (or 2000111028 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 400022204200 its reverse (2402220004), we get a palindrome (402424424204).

The spelling of 400022204200 in words is "four hundred billion, twenty-two million, two hundred four thousand, two hundred".