455865216 has 64 divisors (see below), whose sum is σ = 1225566720. Its totient is φ = 150113792.

The previous prime is 455865203. The next prime is 455865229. The reversal of 455865216 is 612568554.

It is an interprime number because it is at equal distance from previous prime (455865203) and next prime (455865229).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24721 + ... + 39023.

It is an arithmetic number, because the mean of its divisors is an integer number (19149480).

Almost surely, 2^455865216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 455865216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612783360).

455865216 is an abundant number, since it is smaller than the sum of its proper divisors (769701504).

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

455865216 is a wasteful number, since it uses less digits than its factorization.

455865216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14403 (or 14391 counting only the distinct ones).

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

The square root of 455865216 is about 21351.0003512716. Note that the first 3 decimals coincide. The cubic root of 455865216 is about 769.6243830548.

The spelling of 455865216 in words is "four hundred fifty-five million, eight hundred sixty-five thousand, two hundred sixteen".