455621856 has 24 divisors (see below), whose sum is σ = 1196007624. Its totient is φ = 151873920.

The previous prime is 455621821. The next prime is 455621861. The reversal of 455621856 is 658126554.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

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, 2372935 + ... + 2373126.

It is an arithmetic number, because the mean of its divisors is an integer number (49833651).

Almost surely, 2^455621856 is an apocalyptic number.

It is an amenable number.

455621856 is an abundant number, since it is smaller than the sum of its proper divisors (740385768).

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

455621856 is a wasteful number, since it uses less digits than its factorization.

455621856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746074 (or 4746066 counting only the distinct ones).

The product of its digits is 288000, while the sum is 42.

The square root of 455621856 is about 21345.3005600764. The cubic root of 455621856 is about 769.4874060698.

The spelling of 455621856 in words is "four hundred fifty-five million, six hundred twenty-one thousand, eight hundred fifty-six".