402431043344 has 40 divisors (see below), whose sum is σ = 862573095360. Its totient is φ = 180346812800.

The previous prime is 402431043331. The next prime is 402431043347. The reversal of 402431043344 is 443340134204.

It is a self number, because there is not a number n which added to its sum of digits gives 402431043344.

It is not an unprimeable number, because it can be changed into a prime (402431043347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16089899 + ... + 16114890.

It is an arithmetic number, because the mean of its divisors is an integer number (21564327384).

Almost surely, 2^402431043344 is an apocalyptic number.

402431043344 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402431043344 is an abundant number, since it is smaller than the sum of its proper divisors (460142052016).

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

402431043344 is a wasteful number, since it uses less digits than its factorization.

402431043344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32204879 (or 32204873 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 402431043344 its reverse (443340134204), we get a palindrome (845771177548).

The spelling of 402431043344 in words is "four hundred two billion, four hundred thirty-one million, forty-three thousand, three hundred forty-four".