431404312 has 64 divisors (see below), whose sum is σ = 857653920. Its totient is φ = 203194368.

The previous prime is 431404301. The next prime is 431404331. The reversal of 431404312 is 213404134.

It is a super-2 number, since 2×431404312² = 372219360824386688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1678488 + ... + 1678744.

Almost surely, 2^431404312 is an apocalyptic number.

It is an amenable number.

431404312 is a deficient number, since it is larger than the sum of its proper divisors (426249608).

431404312 is a wasteful number, since it uses less digits than its factorization.

431404312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 431404312 is about 20770.2747213416. The cubic root of 431404312 is about 755.6050072144.

Adding to 431404312 its reverse (213404134), we get a palindrome (644808446).

The spelling of 431404312 in words is "four hundred thirty-one million, four hundred four thousand, three hundred twelve".