456669309 has 4 divisors (see below), whose sum is σ = 608892416. Its totient is φ = 304446204.

The previous prime is 456669299. The next prime is 456669329. The reversal of 456669309 is 903966654.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-456669309 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 (456669329) 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, 76111549 + ... + 76111554.

It is an arithmetic number, because the mean of its divisors is an integer number (152223104).

Almost surely, 2^456669309 is an apocalyptic number.

It is an amenable number.

456669309 is a deficient number, since it is larger than the sum of its proper divisors (152223107).

456669309 is a wasteful number, since it uses less digits than its factorization.

456669309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152223106.

The product of its (nonzero) digits is 1049760, while the sum is 48.

The square root of 456669309 is about 21369.8223904645. The cubic root of 456669309 is about 770.0766264329.

The spelling of 456669309 in words is "four hundred fifty-six million, six hundred sixty-nine thousand, three hundred nine".