431442988 has 12 divisors (see below), whose sum is σ = 757020040. Its totient is φ = 215151552.

The previous prime is 431442941. The next prime is 431443031. The reversal of 431442988 is 889244134.

It is a super-2 number, since 2×431442988² = 372286103788736288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140781 + ... + 143812.

Almost surely, 2^431442988 is an apocalyptic number.

It is an amenable number.

431442988 is a deficient number, since it is larger than the sum of its proper divisors (325577052).

431442988 is a wasteful number, since it uses less digits than its factorization.

431442988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284976 (or 284974 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 431442988 is about 20771.2057425658. The cubic root of 431442988 is about 755.6275868882.

The spelling of 431442988 in words is "four hundred thirty-one million, four hundred forty-two thousand, nine hundred eighty-eight".