400140313024244 has 48 divisors (see below), whose sum is σ = 756529659880512. Its totient is φ = 184087734435072.

The previous prime is 400140313024237. The next prime is 400140313024253. The reversal of 400140313024244 is 442420313041004.

It is a super-2 number, since 2×400140313024244² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400140313024244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2178336827 + ... + 2178520509.

It is an arithmetic number, because the mean of its divisors is an integer number (15761034580844).

Almost surely, 2^{400140313024244} is an apocalyptic number.

It is an amenable number.

400140313024244 is a deficient number, since it is larger than the sum of its proper divisors (356389346856268).

400140313024244 is a wasteful number, since it uses less digits than its factorization.

400140313024244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317856 (or 317854 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 400140313024244 its reverse (442420313041004), we get a palindrome (842560626065248).

The spelling of 400140313024244 in words is "four hundred trillion, one hundred forty billion, three hundred thirteen million, twenty-four thousand, two hundred forty-four".