400113244 has 24 divisors (see below), whose sum is σ = 735321888. Its totient is φ = 190132800.

The previous prime is 400113239. The next prime is 400113257. The reversal of 400113244 is 442311004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594 + ... + 28294.

It is an arithmetic number, because the mean of its divisors is an integer number (30638412).

Almost surely, 2^400113244 is an apocalyptic number.

It is an amenable number.

400113244 is a deficient number, since it is larger than the sum of its proper divisors (335208644).

400113244 is a wasteful number, since it uses less digits than its factorization.

400113244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27885 (or 27883 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 400113244 is about 20002.8308996502. The cubic root of 400113244 is about 736.8758255778.

Adding to 400113244 its reverse (442311004), we get a palindrome (842424248).

The spelling of 400113244 in words is "four hundred million, one hundred thirteen thousand, two hundred forty-four".