456212489 has 4 divisors (see below), whose sum is σ = 456972180. Its totient is φ = 455452800.

The previous prime is 456212443. The next prime is 456212507. The reversal of 456212489 is 984212654.

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 324720400 + 131492089 = 18020^2 + 11467^2 .

It is a cyclic number.

It is not a de Polignac number, because 456212489 - 2⁸ = 456212233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (456212189) 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, 378944 + ... + 380145.

It is an arithmetic number, because the mean of its divisors is an integer number (114243045).

Almost surely, 2^456212489 is an apocalyptic number.

It is an amenable number.

456212489 is a deficient number, since it is larger than the sum of its proper divisors (759691).

456212489 is an equidigital number, since it uses as much as digits as its factorization.

456212489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759690.

The product of its digits is 138240, while the sum is 41.

The square root of 456212489 is about 21359.1312791508. The cubic root of 456212489 is about 769.8197638530.

The spelling of 456212489 in words is "four hundred fifty-six million, two hundred twelve thousand, four hundred eighty-nine".