455868644 has 24 divisors (see below), whose sum is σ = 994623168. Its totient is φ = 177611040.

The previous prime is 455868563. The next prime is 455868689. The reversal of 455868644 is 446868554.

It is a junction number, because it is equal to n+sod(n) for n = 455868592 and 455868601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739739 + ... + 740354.

It is an arithmetic number, because the mean of its divisors is an integer number (41442632).

Almost surely, 2^455868644 is an apocalyptic number.

455868644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

455868644 is an abundant number, since it is smaller than the sum of its proper divisors (538754524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

455868644 is a wasteful number, since it uses less digits than its factorization.

455868644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480115 (or 1480113 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 50.

The square root of 455868644 is about 21351.0806283897. The cubic root of 455868644 is about 769.6263121818.

The spelling of 455868644 in words is "four hundred fifty-five million, eight hundred sixty-eight thousand, six hundred forty-four".