455201220 has 24 divisors (see below), whose sum is σ = 1274563584. Its totient is φ = 121386976.

The previous prime is 455201213. The next prime is 455201261. The reversal of 455201220 is 22102554.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 3793284 + ... + 3793403.

It is an arithmetic number, because the mean of its divisors is an integer number (53106816).

Almost surely, 2^455201220 is an apocalyptic number.

It is an amenable number.

455201220 is an abundant number, since it is smaller than the sum of its proper divisors (819362364).

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

455201220 is a wasteful number, since it uses less digits than its factorization.

455201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7586699 (or 7586697 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 455201220 is about 21335.4451558902. The cubic root of 455201220 is about 769.2505329127.

Adding to 455201220 its reverse (22102554), we get a palindrome (477303774).

The spelling of 455201220 in words is "four hundred fifty-five million, two hundred one thousand, two hundred twenty".