431216460 has 60 divisors (see below), whose sum is σ = 1352747088. Its totient is φ = 114990624.

The previous prime is 431216459. The next prime is 431216491. The reversal of 431216460 is 64612134.

431216460 is a `hidden beast` number, since 4 + 3 + 12 + 1 + 646 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 131472 + ... + 134711.

Almost surely, 2^431216460 is an apocalyptic number.

It is an amenable number.

431216460 is an abundant number, since it is smaller than the sum of its proper divisors (921530628).

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

431216460 is a wasteful number, since it uses less digits than its factorization.

431216460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266204 (or 266193 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 431216460 is about 20765.7520932905. The cubic root of 431216460 is about 755.4953169807.

Adding to 431216460 its reverse (64612134), we get a palindrome (495828594).

The spelling of 431216460 in words is "four hundred thirty-one million, two hundred sixteen thousand, four hundred sixty".