400113315232 has 12 divisors (see below), whose sum is σ = 787723089426. Its totient is φ = 200056657600.

The previous prime is 400113315197. The next prime is 400113315253. The reversal of 400113315232 is 232513311004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 312565973776 + 87547341456 = 559076^2 + 295884^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 400113315197 and 400113315206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251770519 + ... + 6251770582.

Almost surely, 2^400113315232 is an apocalyptic number.

It is an amenable number.

400113315232 is a deficient number, since it is larger than the sum of its proper divisors (387609774194).

400113315232 is a wasteful number, since it uses less digits than its factorization.

400113315232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12503541111 (or 12503541103 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 400113315232 its reverse (232513311004), we get a palindrome (632626626236).

The spelling of 400113315232 in words is "four hundred billion, one hundred thirteen million, three hundred fifteen thousand, two hundred thirty-two".