228559236 has 12 divisors (see below), whose sum is σ = 533304912. Its totient is φ = 76186408.

The previous prime is 228559231. The next prime is 228559241. The reversal of 228559236 is 632955822.

228559236 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 (228559231) and next prime (228559241).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (228559231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9523290 + ... + 9523313.

It is an arithmetic number, because the mean of its divisors is an integer number (44442076).

Almost surely, 2^228559236 is an apocalyptic number.

It is an amenable number.

228559236 is an abundant number, since it is smaller than the sum of its proper divisors (304745676).

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

228559236 is a wasteful number, since it uses less digits than its factorization.

228559236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19046610 (or 19046608 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 228559236 is about 15118.1756835936. The cubic root of 228559236 is about 611.4105456901.

The spelling of 228559236 in words is "two hundred twenty-eight million, five hundred fifty-nine thousand, two hundred thirty-six".