456394409 has 4 divisors (see below), whose sum is σ = 461099604. Its totient is φ = 451689216.

The previous prime is 456394397. The next prime is 456394417. The reversal of 456394409 is 904493654.

It is a happy number.

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 356454400 + 99940009 = 18880^2 + 9997^2 .

It is a cyclic number.

It is not a de Polignac number, because 456394409 - 2⁸ = 456394153 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 456394409.

It is not an unprimeable number, because it can be changed into a prime (456394709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2352452 + ... + 2352645.

It is an arithmetic number, because the mean of its divisors is an integer number (115274901).

Almost surely, 2^456394409 is an apocalyptic number.

It is an amenable number.

456394409 is a deficient number, since it is larger than the sum of its proper divisors (4705195).

456394409 is an equidigital number, since it uses as much as digits as its factorization.

456394409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705194.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 456394409 is about 21363.3894548595. The cubic root of 456394409 is about 769.9220750961.

The spelling of 456394409 in words is "four hundred fifty-six million, three hundred ninety-four thousand, four hundred nine".