431274645 has 32 divisors (see below), whose sum is σ = 778170240. Its totient is φ = 226575360.

The previous prime is 431274643. The next prime is 431274653. The reversal of 431274645 is 546472134.

431274645 is a `hidden beast` number, since 4 + 3 + 1 + 2 + 7 + 4 + 645 = 666.

It is not a de Polignac number, because 431274645 - 2¹ = 431274643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431274643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14796 + ... + 32885.

It is an arithmetic number, because the mean of its divisors is an integer number (24317820).

Almost surely, 2^431274645 is an apocalyptic number.

431274645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

431274645 is a deficient number, since it is larger than the sum of its proper divisors (346895595).

431274645 is a wasteful number, since it uses less digits than its factorization.

431274645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47762 (or 47756 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 431274645 is about 20767.1530306877. The cubic root of 431274645 is about 755.5292956760.

The spelling of 431274645 in words is "four hundred thirty-one million, two hundred seventy-four thousand, six hundred forty-five".