455444808 has 192 divisors, whose sum is σ = 1473937920. Its totient is φ = 116242560.

The previous prime is 455444753. The next prime is 455444809. The reversal of 455444808 is 808444554.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 455444808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455444809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14691753 + ... + 14691783.

It is an arithmetic number, because the mean of its divisors is an integer number (7676760).

Almost surely, 2^455444808 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 455444808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (736968960).

455444808 is an abundant number, since it is smaller than the sum of its proper divisors (1018493112).

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

455444808 is a wasteful number, since it uses less digits than its factorization.

455444808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 42.

The square root of 455444808 is about 21341.1529210584. The cubic root of 455444808 is about 769.3877226337.

The spelling of 455444808 in words is "four hundred fifty-five million, four hundred forty-four thousand, eight hundred eight".