431402324442 has 32 divisors (see below), whose sum is σ = 868940789184. Its totient is φ = 142779436800.

The previous prime is 431402324429. The next prime is 431402324449. The reversal of 431402324442 is 244423204134.

It is a super-2 number, since 2×431402324442² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431402324449) 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, 1113817 + ... + 1450307.

It is an arithmetic number, because the mean of its divisors is an integer number (27154399662).

Almost surely, 2^431402324442 is an apocalyptic number.

431402324442 is an abundant number, since it is smaller than the sum of its proper divisors (437538464742).

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

431402324442 is a wasteful number, since it uses less digits than its factorization.

431402324442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338014.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 431402324442 its reverse (244423204134), we get a palindrome (675825528576).

The spelling of 431402324442 in words is "four hundred thirty-one billion, four hundred two million, three hundred twenty-four thousand, four hundred forty-two".