228680226 has 32 divisors (see below), whose sum is σ = 538073280. Its totient is φ = 71742528.

The previous prime is 228680183. The next prime is 228680227. The reversal of 228680226 is 622086822.

It is a super-2 number, since 2×228680226² = 104589291526822152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (228680227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123636 + ... + 125471.

It is an arithmetic number, because the mean of its divisors is an integer number (16814790).

Almost surely, 2^228680226 is an apocalyptic number.

228680226 is an abundant number, since it is smaller than the sum of its proper divisors (309393054).

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

228680226 is a wasteful number, since it uses less digits than its factorization.

228680226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249135 (or 249129 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 228680226 is about 15122.1766290438. The cubic root of 228680226 is about 611.5184119834.

The spelling of 228680226 in words is "two hundred twenty-eight million, six hundred eighty thousand, two hundred twenty-six".