400432786244 has 12 divisors (see below), whose sum is σ = 702558811500. Its totient is φ = 199701697248.

The previous prime is 400432786231. The next prime is 400432786249. The reversal of 400432786244 is 442687234004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 149343602500 + 251089183744 = 386450^2 + 501088^2 .

It is a junction number, because it is equal to n+sod(n) for n = 400432786195 and 400432786204.

It is not an unprimeable number, because it can be changed into a prime (400432786249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128672219 + ... + 128675330.

It is an arithmetic number, because the mean of its divisors is an integer number (58546567625).

Almost surely, 2^400432786244 is an apocalyptic number.

It is an amenable number.

400432786244 is a deficient number, since it is larger than the sum of its proper divisors (302126025256).

400432786244 is a wasteful number, since it uses less digits than its factorization.

400432786244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257347942 (or 257347940 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 44.

The spelling of 400432786244 in words is "four hundred billion, four hundred thirty-two million, seven hundred eighty-six thousand, two hundred forty-four".