431442341440 has 56 divisors (see below), whose sum is σ = 1120769546112. Its totient is φ = 156888122880.

The previous prime is 431442341423. The next prime is 431442341467. The reversal of 431442341440 is 44143244134.

It is a super-2 number, since 2×431442341440² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431442341396 and 431442341405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61280904 + ... + 61287943.

Almost surely, 2^431442341440 is an apocalyptic number.

431442341440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431442341440 is an abundant number, since it is smaller than the sum of its proper divisors (689327204672).

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

431442341440 is a wasteful number, since it uses less digits than its factorization.

431442341440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122568875 (or 122568865 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 431442341440 its reverse (44143244134), we get a palindrome (475585585574).

The spelling of 431442341440 in words is "four hundred thirty-one billion, four hundred forty-two million, three hundred forty-one thousand, four hundred forty".