456488309 has 4 divisors (see below), whose sum is σ = 456605100. Its totient is φ = 456371520.

The previous prime is 456488269. The next prime is 456488317. The reversal of 456488309 is 903884654.

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 166978084 + 289510225 = 12922^2 + 17015^2 .

It is a cyclic number.

It is not a de Polignac number, because 456488309 - 2¹² = 456484213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456488399) 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, 52322 + ... + 60419.

It is an arithmetic number, because the mean of its divisors is an integer number (114151275).

Almost surely, 2^456488309 is an apocalyptic number.

It is an amenable number.

456488309 is a deficient number, since it is larger than the sum of its proper divisors (116791).

456488309 is a wasteful number, since it uses less digits than its factorization.

456488309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116790.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 456488309 is about 21365.5870268055. The cubic root of 456488309 is about 769.9748735265.

The spelling of 456488309 in words is "four hundred fifty-six million, four hundred eighty-eight thousand, three hundred nine".