431531230 has 128 divisors (see below), whose sum is σ = 958003200. Its totient is φ = 138184704.

The previous prime is 431531203. The next prime is 431531237. The reversal of 431531230 is 32135134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431531237) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1805451 + ... + 1805689.

It is an arithmetic number, because the mean of its divisors is an integer number (7484400).

Almost surely, 2^431531230 is an apocalyptic number.

431531230 is an abundant number, since it is smaller than the sum of its proper divisors (526471970).

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

431531230 is a wasteful number, since it uses less digits than its factorization.

431531230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 431531230 is about 20773.3297764225. The cubic root of 431531230 is about 755.6790989428.

Adding to 431531230 its reverse (32135134), we get a palindrome (463666364).

The spelling of 431531230 in words is "four hundred thirty-one million, five hundred thirty-one thousand, two hundred thirty".