431532 has 18 divisors (see below), whose sum is σ = 1090908. Its totient is φ = 143832.

The previous prime is 431521. The next prime is 431533. The reversal of 431532 is 235134.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is not an unprimeable number, because it can be changed into a prime (431533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5958 + ... + 6029.

It is an arithmetic number, because the mean of its divisors is an integer number (60606).

2⁴³¹⁵³² is an apocalyptic number.

It is an amenable number.

431532 is an abundant number, since it is smaller than the sum of its proper divisors (659376).

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

431532 is a wasteful number, since it uses less digits than its factorization.

431532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11997 (or 11992 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 431532 is about 656.9109528696. The cubic root of 431532 is about 75.5679548406.

Adding to 431532 its reverse (235134), we get a palindrome (666666).

The spelling of 431532 in words is "four hundred thirty-one thousand, five hundred thirty-two".