431276745 has 32 divisors (see below), whose sum is σ = 708704640. Its totient is φ = 223823360.

The previous prime is 431276737. The next prime is 431276779. The reversal of 431276745 is 547672134.

It is not a de Polignac number, because 431276745 - 2³ = 431276737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 341926 + ... + 343184.

It is an arithmetic number, because the mean of its divisors is an integer number (22147020).

Almost surely, 2^431276745 is an apocalyptic number.

It is an amenable number.

431276745 is a deficient number, since it is larger than the sum of its proper divisors (277427895).

431276745 is a wasteful number, since it uses less digits than its factorization.

431276745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865.

The product of its digits is 141120, while the sum is 39.

The square root of 431276745 is about 20767.2035912397. The cubic root of 431276745 is about 755.5305219703.

The spelling of 431276745 in words is "four hundred thirty-one million, two hundred seventy-six thousand, seven hundred forty-five".