431143456 has 24 divisors (see below), whose sum is σ = 868556304. Its totient is φ = 210557760.

The previous prime is 431143451. The next prime is 431143463. The reversal of 431143456 is 654341134.

It is a happy number.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (431143451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155290 + ... + 158041.

It is an arithmetic number, because the mean of its divisors is an integer number (36189846).

Almost surely, 2^431143456 is an apocalyptic number.

It is an amenable number.

431143456 is an abundant number, since it is smaller than the sum of its proper divisors (437412848).

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

431143456 is a wasteful number, since it uses less digits than its factorization.

431143456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313384 (or 313376 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 431143456 is about 20763.9942207659. The cubic root of 431143456 is about 755.4526800083.

The spelling of 431143456 in words is "four hundred thirty-one million, one hundred forty-three thousand, four hundred fifty-six".