431312449 has 4 divisors (see below), whose sum is σ = 431495380. Its totient is φ = 431129520.

The previous prime is 431312443. The next prime is 431312459. The reversal of 431312449 is 944213134.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80874049 + 350438400 = 8993^2 + 18720^2 .

It is a cyclic number.

It is not a de Polignac number, because 431312449 - 2⁵ = 431312417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431312449.

It is not an unprimeable number, because it can be changed into a prime (431312443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87882 + ... + 92659.

It is an arithmetic number, because the mean of its divisors is an integer number (107873845).

Almost surely, 2^431312449 is an apocalyptic number.

It is an amenable number.

431312449 is a deficient number, since it is larger than the sum of its proper divisors (182931).

431312449 is a wasteful number, since it uses less digits than its factorization.

431312449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182930.

The product of its digits is 10368, while the sum is 31.

The square root of 431312449 is about 20768.0631980934. The cubic root of 431312449 is about 755.5513707004.

The spelling of 431312449 in words is "four hundred thirty-one million, three hundred twelve thousand, four hundred forty-nine".