431434252040 has 64 divisors (see below), whose sum is σ = 1059045624000. Its totient is φ = 156874717440.

The previous prime is 431434251907. The next prime is 431434252061. The reversal of 431434252040 is 40252434134.

It is a super-2 number, since 2×431434252040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431434251988 and 431434252006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10217291 + ... + 10259429.

It is an arithmetic number, because the mean of its divisors is an integer number (16547587875).

Almost surely, 2^431434252040 is an apocalyptic number.

431434252040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431434252040 is an abundant number, since it is smaller than the sum of its proper divisors (627611371960).

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

431434252040 is a wasteful number, since it uses less digits than its factorization.

431434252040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65430 (or 65426 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 431434252040 its reverse (40252434134), we get a palindrome (471686686174).

The spelling of 431434252040 in words is "four hundred thirty-one billion, four hundred thirty-four million, two hundred fifty-two thousand, forty".