455540988 has 48 divisors (see below), whose sum is σ = 1221113600. Its totient is φ = 129475584.

The previous prime is 455540971. The next prime is 455541083. The reversal of 455540988 is 889045554.

It is a super-2 number, since 2×455540988² = 415035183496032288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2163 + ... + 30261.

Almost surely, 2^455540988 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 455540988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610556800).

455540988 is an abundant number, since it is smaller than the sum of its proper divisors (765572612).

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

455540988 is a wasteful number, since it uses less digits than its factorization.

455540988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28306 (or 28304 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 48.

The square root of 455540988 is about 21343.4061948884. The cubic root of 455540988 is about 769.4418781182.

The spelling of 455540988 in words is "four hundred fifty-five million, five hundred forty thousand, nine hundred eighty-eight".