402431044312 has 64 divisors (see below), whose sum is σ = 827574602400. Its totient is φ = 181942640640.

The previous prime is 402431044297. The next prime is 402431044313. The reversal of 402431044312 is 213440134204.

It is a super-3 number, since 3×402431044312³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402431044313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20022364 + ... + 20042452.

Almost surely, 2^402431044312 is an apocalyptic number.

It is an amenable number.

402431044312 is an abundant number, since it is smaller than the sum of its proper divisors (425143558088).

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

402431044312 is a wasteful number, since it uses less digits than its factorization.

402431044312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21316 (or 21312 counting only the distinct ones).

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

Adding to 402431044312 its reverse (213440134204), we get a palindrome (615871178516).

The spelling of 402431044312 in words is "four hundred two billion, four hundred thirty-one million, forty-four thousand, three hundred twelve".