228285872 has 10 divisors (see below), whose sum is σ = 442303908. Its totient is φ = 114142928.

The previous prime is 228285853. The next prime is 228285899. The reversal of 228285872 is 278582822.

It is a super-2 number, since 2×228285872² = 104228878709600768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7133918 + ... + 7133949.

Almost surely, 2^228285872 is an apocalyptic number.

It is an amenable number.

228285872 is a deficient number, since it is larger than the sum of its proper divisors (214018036).

228285872 is a wasteful number, since it uses less digits than its factorization.

228285872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14267875 (or 14267869 counting only the distinct ones).

The product of its digits is 286720, while the sum is 44.

The square root of 228285872 is about 15109.1320730213. The cubic root of 228285872 is about 611.1666930627.

The spelling of 228285872 in words is "two hundred twenty-eight million, two hundred eighty-five thousand, eight hundred seventy-two".