431312 has 20 divisors (see below), whose sum is σ = 955296. Its totient is φ = 184800.

The previous prime is 431311. The next prime is 431329. The reversal of 431312 is 213134.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814 + ... + 2037.

2⁴³¹³¹² is an apocalyptic number.

It is an amenable number.

431312 is an abundant number, since it is smaller than the sum of its proper divisors (523984).

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

431312 is a wasteful number, since it uses less digits than its factorization.

431312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866 (or 3860 counting only the distinct ones).

The product of its digits is 72, while the sum is 14.

The square root of 431312 is about 656.7434811249. The cubic root of 431312 is about 75.5551108522. Note that the first 3 decimals are identical.

Adding to 431312 its reverse (213134), we get a palindrome (644446).

The spelling of 431312 in words is "four hundred thirty-one thousand, three hundred twelve".