228863268 has 18 divisors (see below), whose sum is σ = 578515574. Its totient is φ = 76287744.

The previous prime is 228863251. The next prime is 228863269. The reversal of 228863268 is 862368822.

228863268 is a `hidden beast` number, since 2 + 2 + 8 + 8 + 632 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 170615844 + 58247424 = 13062^2 + 7632^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (228863269) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3178621 + ... + 3178692.

Almost surely, 2^228863268 is an apocalyptic number.

It is an amenable number.

228863268 is an abundant number, since it is smaller than the sum of its proper divisors (349652306).

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

228863268 is a wasteful number, since it uses less digits than its factorization.

228863268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6357323 (or 6357318 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 228863268 is about 15128.2275234080. The cubic root of 228863268 is about 611.6815272404.

It can be divided in two parts, 2288 and 63268, that added together give a palindrome (65556).

The spelling of 228863268 in words is "two hundred twenty-eight million, eight hundred sixty-three thousand, two hundred sixty-eight".