220242228 has 24 divisors (see below), whose sum is σ = 530476800. Its totient is φ = 71045760.

The previous prime is 220242223. The next prime is 220242247. The reversal of 220242228 is 822242022.

It is a junction number, because it is equal to n+sod(n) for n = 220242198 and 220242207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220242223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295653 + ... + 296396.

It is an arithmetic number, because the mean of its divisors is an integer number (22103200).

Almost surely, 2^220242228 is an apocalyptic number.

It is an amenable number.

220242228 is an abundant number, since it is smaller than the sum of its proper divisors (310234572).

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

220242228 is a wasteful number, since it uses less digits than its factorization.

220242228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592087 (or 592085 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 220242228 is about 14840.5602320128. The cubic root of 220242228 is about 603.9025506863.

The spelling of 220242228 in words is "two hundred twenty million, two hundred forty-two thousand, two hundred twenty-eight".