431316669 has 16 divisors (see below), whose sum is σ = 670659200. Its totient is φ = 246466080.

The previous prime is 431316667. The next prime is 431316719. The reversal of 431316669 is 966613134.

It is not a de Polignac number, because 431316669 - 2¹ = 431316667 is a prime.

It is a super-2 number, since 2×431316669² = 372068137914511122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431316661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208552 + ... + 210609.

It is an arithmetic number, because the mean of its divisors is an integer number (41916200).

Almost surely, 2^431316669 is an apocalyptic number.

431316669 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

431316669 is a deficient number, since it is larger than the sum of its proper divisors (239342531).

431316669 is an equidigital number, since it uses as much as digits as its factorization.

431316669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419185 (or 419171 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 431316669 is about 20768.1647961489. The cubic root of 431316669 is about 755.5538348200.

It can be divided in two parts, 431316 and 669, that added together give a triangular number (431985 = T₉₂₉).

The spelling of 431316669 in words is "four hundred thirty-one million, three hundred sixteen thousand, six hundred sixty-nine".