431243456 has 112 divisors (see below), whose sum is σ = 1065580800. Its totient is φ = 168956928.

The previous prime is 431243443. The next prime is 431243459. The reversal of 431243456 is 654342134.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (431243459) 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, 245975 + ... + 247721.

Almost surely, 2^431243456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431243456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532790400).

431243456 is an abundant number, since it is smaller than the sum of its proper divisors (634337344).

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

431243456 is a wasteful number, since it uses less digits than its factorization.

431243456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814 (or 1804 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 431243456 is about 20766.4020956929. The cubic root of 431243456 is about 755.5110824009.

The spelling of 431243456 in words is "four hundred thirty-one million, two hundred forty-three thousand, four hundred fifty-six".