455220290 has 48 divisors (see below), whose sum is σ = 959055552. Its totient is φ = 155113056.

The previous prime is 455220289. The next prime is 455220313. The reversal of 455220290 is 92022554.

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 23 ways as a sum of consecutive naturals, for example, 79049 + ... + 84611.

It is an arithmetic number, because the mean of its divisors is an integer number (19980324).

Almost surely, 2^455220290 is an apocalyptic number.

455220290 is an abundant number, since it is smaller than the sum of its proper divisors (503835262).

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

455220290 is a wasteful number, since it uses less digits than its factorization.

455220290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751 (or 5744 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 455220290 is about 21335.8920600944. The cubic root of 455220290 is about 769.2612749774.

It can be divided in two parts, 4552 and 20290, that added together give a palindrome (24842).

The spelling of 455220290 in words is "four hundred fifty-five million, two hundred twenty thousand, two hundred ninety".