220888340 has 12 divisors (see below), whose sum is σ = 463865556. Its totient is φ = 88355328.

The previous prime is 220888337. The next prime is 220888363. The reversal of 220888340 is 43888022.

220888340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 169937296 + 50951044 = 13036^2 + 7138^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220888340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5522189 + ... + 5522228.

It is an arithmetic number, because the mean of its divisors is an integer number (38655463).

Almost surely, 2^220888340 is an apocalyptic number.

220888340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220888340 is an abundant number, since it is smaller than the sum of its proper divisors (242977216).

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

220888340 is a wasteful number, since it uses less digits than its factorization.

220888340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11044426 (or 11044424 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 220888340 is about 14862.3127406201. The cubic root of 220888340 is about 604.4925189089.

The spelling of 220888340 in words is "two hundred twenty million, eight hundred eighty-eight thousand, three hundred forty".