431423212 has 24 divisors (see below), whose sum is σ = 872076240. Its totient is φ = 184565760.

The previous prime is 431423207. The next prime is 431423231. The reversal of 431423212 is 212324134.

It is a super-2 number, since 2×431423212² = 372251975704793888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287637 + ... + 289132.

It is an arithmetic number, because the mean of its divisors is an integer number (36336510).

Almost surely, 2^431423212 is an apocalyptic number.

It is an amenable number.

431423212 is an abundant number, since it is smaller than the sum of its proper divisors (440653028).

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

431423212 is a wasteful number, since it uses less digits than its factorization.

431423212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576801 (or 576799 counting only the distinct ones).

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

The square root of 431423212 is about 20770.7296934893. The cubic root of 431423212 is about 755.6160415084.

Adding to 431423212 its reverse (212324134), we get a palindrome (643747346).

The spelling of 431423212 in words is "four hundred thirty-one million, four hundred twenty-three thousand, two hundred twelve".