400244240200 has 72 divisors (see below), whose sum is σ = 1082497331250. Its totient is φ = 137226593280.

The previous prime is 400244240197. The next prime is 400244240219. The reversal of 400244240200 is 2042442004.

It can be written as a sum of positive squares in 3 ways, for example, as 149337419364 + 250906820836 = 386442^2 + 500906^2 .

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 20410825 + ... + 20430424.

Almost surely, 2^400244240200 is an apocalyptic number.

400244240200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400244240200 is an abundant number, since it is smaller than the sum of its proper divisors (682253091050).

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

400244240200 is a wasteful number, since it uses less digits than its factorization.

400244240200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40841279 (or 40841263 counting only the distinct ones).

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

Adding to 400244240200 its reverse (2042442004), we get a palindrome (402286682204).

The spelling of 400244240200 in words is "four hundred billion, two hundred forty-four million, two hundred forty thousand, two hundred".