228279656 has 32 divisors (see below), whose sum is σ = 467704800. Its totient is φ = 103592640.

The previous prime is 228279641. The next prime is 228279671. The reversal of 228279656 is 656972822.

228279656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228279641) and next prime (228279671).

It is a super-2 number, since 2×228279656² = 104223202686956672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228279656.

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, 62735 + ... + 66273.

It is an arithmetic number, because the mean of its divisors is an integer number (14615775).

Almost surely, 2^228279656 is an apocalyptic number.

It is an amenable number.

228279656 is an abundant number, since it is smaller than the sum of its proper divisors (239425144).

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

228279656 is a wasteful number, since it uses less digits than its factorization.

228279656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289 (or 4285 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 228279656 is about 15108.9263682103. The cubic root of 228279656 is about 611.1611458562.

The spelling of 228279656 in words is "two hundred twenty-eight million, two hundred seventy-nine thousand, six hundred fifty-six".