431450631 has 28 divisors (see below), whose sum is σ = 649268232. Its totient is φ = 286572816.

The previous prime is 431450609. The next prime is 431450641. The reversal of 431450631 is 136054134.

It is not a de Polignac number, because 431450631 - 2⁶ = 431450567 is a prime.

It is a super-2 number, since 2×431450631² = 372299293980596322, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 431450595 and 431450604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431450641) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 230160 + ... + 232026.

Almost surely, 2^431450631 is an apocalyptic number.

431450631 is a deficient number, since it is larger than the sum of its proper divisors (217817601).

431450631 is an equidigital number, since it uses as much as digits as its factorization.

431450631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 431450631 is about 20771.3897224042. The cubic root of 431450631 is about 755.6320488355.

It can be divided in two parts, 4314 and 50631, that added together give a palindrome (54945).

The spelling of 431450631 in words is "four hundred thirty-one million, four hundred fifty thousand, six hundred thirty-one".