431304 has 16 divisors (see below), whose sum is σ = 1078320. Its totient is φ = 143760.

The previous prime is 431297. The next prime is 431311. The reversal of 431304 is 403134.

It is an interprime number because it is at equal distance from previous prime (431297) and next prime (431311).

It is an unprimeable number.

431304 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8962 + ... + 9009.

It is an arithmetic number, because the mean of its divisors is an integer number (67395).

2⁴³¹³⁰⁴ is an apocalyptic number.

It is an amenable number.

431304 is an abundant number, since it is smaller than the sum of its proper divisors (647016).

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

431304 is a wasteful number, since it uses less digits than its factorization.

431304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17980 (or 17976 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 431304 is about 656.7373904385. The cubic root of 431304 is about 75.5546437158.

Adding to 431304 its reverse (403134), we get a palindrome (834438).

It can be divided in two parts, 43130 and 4, that added together give a palindrome (43134).

The spelling of 431304 in words is "four hundred thirty-one thousand, three hundred four".