220882818 has 32 divisors (see below), whose sum is σ = 478037952. Its totient is φ = 67636800.

The previous prime is 220882811. The next prime is 220882841. The reversal of 220882818 is 818288022.

It is a super-2 number, since 2×220882818² = 97578438575242248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (220882811) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9748 + ... + 23168.

It is an arithmetic number, because the mean of its divisors is an integer number (14938686).

Almost surely, 2^220882818 is an apocalyptic number.

220882818 is an abundant number, since it is smaller than the sum of its proper divisors (257155134).

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

220882818 is a wasteful number, since it uses less digits than its factorization.

220882818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13650.

The product of its (nonzero) digits is 32768, while the sum is 39.

The square root of 220882818 is about 14862.1269675642. The cubic root of 220882818 is about 604.4874816195.

The spelling of 220882818 in words is "two hundred twenty million, eight hundred eighty-two thousand, eight hundred eighteen".