431290416 has 20 divisors (see below), whose sum is σ = 1114167032. Its totient is φ = 143763456.

The previous prime is 431290403. The next prime is 431290427. The reversal of 431290416 is 614092134.

It is a super-2 number, since 2×431290416² = 372022845866906112, 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, 4492561 + ... + 4492656.

Almost surely, 2^431290416 is an apocalyptic number.

It is an amenable number.

431290416 is an abundant number, since it is smaller than the sum of its proper divisors (682876616).

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

431290416 is a wasteful number, since it uses less digits than its factorization.

431290416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8985228 (or 8985222 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 431290416 is about 20767.5327374245. The cubic root of 431290416 is about 755.5385050490.

The spelling of 431290416 in words is "four hundred thirty-one million, two hundred ninety thousand, four hundred sixteen".