402431312224 has 48 divisors (see below), whose sum is σ = 813821894928. Its totient is φ = 195748019712.

The previous prime is 402431312209. The next prime is 402431312233. The reversal of 402431312224 is 422213134204.

It is a super-2 number, since 2×402431312224² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402431312192 and 402431312201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9311914 + ... + 9355030.

It is an arithmetic number, because the mean of its divisors is an integer number (16954622811).

Almost surely, 2^402431312224 is an apocalyptic number.

It is an amenable number.

402431312224 is an abundant number, since it is smaller than the sum of its proper divisors (411390582704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402431312224 is a wasteful number, since it uses less digits than its factorization.

402431312224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51047 (or 51039 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 402431312224 its reverse (422213134204), we get a palindrome (824644446428).

The spelling of 402431312224 in words is "four hundred two billion, four hundred thirty-one million, three hundred twelve thousand, two hundred twenty-four".