400143412244 has 12 divisors (see below), whose sum is σ = 708118960500. Its totient is φ = 197823709248.

The previous prime is 400143412223. The next prime is 400143412289. The reversal of 400143412244 is 442214341004.

It can be written as a sum of positive squares in 2 ways, for example, as 23122851844 + 377020560400 = 152062^2 + 614020^2 .

It is a super-2 number, since 2×400143412244² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561998819 + ... + 561999530.

It is an arithmetic number, because the mean of its divisors is an integer number (59009913375).

Almost surely, 2^400143412244 is an apocalyptic number.

It is an amenable number.

400143412244 is a deficient number, since it is larger than the sum of its proper divisors (307975548256).

400143412244 is a wasteful number, since it uses less digits than its factorization.

400143412244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123998442 (or 1123998440 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 400143412244 its reverse (442214341004), we get a palindrome (842357753248).

The spelling of 400143412244 in words is "four hundred billion, one hundred forty-three million, four hundred twelve thousand, two hundred forty-four".