228890022 has 16 divisors (see below), whose sum is σ = 462924720. Its totient is φ = 75439232.

The previous prime is 228889993. The next prime is 228890041. The reversal of 228890022 is 220098822.

228890022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 213783 + ... + 214850.

It is an arithmetic number, because the mean of its divisors is an integer number (28932795).

Almost surely, 2^228890022 is an apocalyptic number.

228890022 is an abundant number, since it is smaller than the sum of its proper divisors (234034698).

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

228890022 is a wasteful number, since it uses less digits than its factorization.

228890022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428727.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 228890022 is about 15129.1117386316. Note that the first 3 decimals coincide. The cubic root of 228890022 is about 611.7053613985.

The spelling of 228890022 in words is "two hundred twenty-eight million, eight hundred ninety thousand, twenty-two".