431420168 has 16 divisors (see below), whose sum is σ = 809797500. Its totient is φ = 215474176.

The previous prime is 431420167. The next prime is 431420173. The reversal of 431420168 is 861024134.

It can be written as a sum of positive squares in 2 ways, for example, as 413796964 + 17623204 = 20342^2 + 4198^2 .

It is a super-2 number, since 2×431420168² = 372246722714296448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431420168.

It is not an unprimeable number, because it can be changed into a prime (431420167) 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, 21593 + ... + 36456.

Almost surely, 2^431420168 is an apocalyptic number.

It is an amenable number.

431420168 is a deficient number, since it is larger than the sum of its proper divisors (378377332).

431420168 is a wasteful number, since it uses less digits than its factorization.

431420168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58984 (or 58980 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 431420168 is about 20770.6564171670. The cubic root of 431420168 is about 755.6142643667.

The spelling of 431420168 in words is "four hundred thirty-one million, four hundred twenty thousand, one hundred sixty-eight".