456646449 has 8 divisors (see below), whose sum is σ = 695842240. Its totient is φ = 260940816.

The previous prime is 456646433. The next prime is 456646457. The reversal of 456646449 is 944646654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 456646449 - 2⁴ = 456646433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 456646398 and 456646407.

It is not an unprimeable number, because it can be changed into a prime (456646459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10872514 + ... + 10872555.

It is an arithmetic number, because the mean of its divisors is an integer number (86980280).

Almost surely, 2^456646449 is an apocalyptic number.

It is an amenable number.

456646449 is a deficient number, since it is larger than the sum of its proper divisors (239195791).

456646449 is a wasteful number, since it uses less digits than its factorization.

456646449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21745079.

The product of its digits is 2488320, while the sum is 48.

The square root of 456646449 is about 21369.2875173694. The cubic root of 456646449 is about 770.0637766930.

It can be divided in two parts, 4566 and 46449, that added together give a palindrome (51015).

The spelling of 456646449 in words is "four hundred fifty-six million, six hundred forty-six thousand, four hundred forty-nine".