431120232 has 80 divisors (see below), whose sum is σ = 1230417540. Its totient is φ = 140984064.

The previous prime is 431120213. The next prime is 431120243. The reversal of 431120232 is 232021134.

431120232 is a `hidden beast` number, since 431 + 1 + 2 + 0 + 232 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 339075396 + 92044836 = 18414^2 + 9594^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28068 + ... + 40620.

Almost surely, 2^431120232 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 431120232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615208770).

431120232 is an abundant number, since it is smaller than the sum of its proper divisors (799297308).

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

431120232 is a wasteful number, since it uses less digits than its factorization.

431120232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12624 (or 12611 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 431120232 is about 20763.4349759379. The cubic root of 431120232 is about 755.4391153446.

Adding to 431120232 its reverse (232021134), we get a palindrome (663141366).

The spelling of 431120232 in words is "four hundred thirty-one million, one hundred twenty thousand, two hundred thirty-two".