455720920 has 32 divisors (see below), whose sum is σ = 1027015200. Its totient is φ = 181996288.

The previous prime is 455720911. The next prime is 455720939. The reversal of 455720920 is 29027554.

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, 17076 + ... + 34684.

It is an arithmetic number, because the mean of its divisors is an integer number (32094225).

Almost surely, 2^455720920 is an apocalyptic number.

455720920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455720920 is an abundant number, since it is smaller than the sum of its proper divisors (571294280).

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

455720920 is a wasteful number, since it uses less digits than its factorization.

455720920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18267 (or 18263 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 455720920 is about 21347.6209447329. The cubic root of 455720920 is about 769.5431708635.

The spelling of 455720920 in words is "four hundred fifty-five million, seven hundred twenty thousand, nine hundred twenty".