431440540345304 has 32 divisors (see below), whose sum is σ = 924946855633920. Its totient is φ = 184816806312096.

The previous prime is 431440540345253. The next prime is 431440540345307. The reversal of 431440540345304 is 403543045044134.

It is a super-2 number, since 2×431440540345304² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431440540345307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1797429074 + ... + 1797669089.

It is an arithmetic number, because the mean of its divisors is an integer number (28904589238560).

Almost surely, 2^{431440540345304} is an apocalyptic number.

It is an amenable number.

431440540345304 is an abundant number, since it is smaller than the sum of its proper divisors (493506315288616).

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

431440540345304 is a wasteful number, since it uses less digits than its factorization.

431440540345304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595100319 (or 3595100315 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 44.

Adding to 431440540345304 its reverse (403543045044134), we get a palindrome (834983585389438).

The spelling of 431440540345304 in words is "four hundred thirty-one trillion, four hundred forty billion, five hundred forty million, three hundred forty-five thousand, three hundred four".