228942266 has 16 divisors (see below), whose sum is σ = 392679360. Its totient is φ = 98066400.

The previous prime is 228942251. The next prime is 228942293. The reversal of 228942266 is 662249822.

It is a super-2 number, since 2×228942266² = 104829122322429512, which contains 22 as substring.

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, 36566 + ... + 42366.

It is an arithmetic number, because the mean of its divisors is an integer number (24542460).

Almost surely, 2^228942266 is an apocalyptic number.

228942266 is a deficient number, since it is larger than the sum of its proper divisors (163737094).

228942266 is a wasteful number, since it uses less digits than its factorization.

228942266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8629.

The product of its digits is 165888, while the sum is 41.

The square root of 228942266 is about 15130.8382451205. The cubic root of 228942266 is about 611.7518983095.

The spelling of 228942266 in words is "two hundred twenty-eight million, nine hundred forty-two thousand, two hundred sixty-six".