228642183 has 60 divisors (see below), whose sum is σ = 433517832. Its totient is φ = 118752480.

The previous prime is 228642179. The next prime is 228642187. The reversal of 228642183 is 381246822.

228642183 is a `hidden beast` number, since 2 + 2 + 8 + 642 + 1 + 8 + 3 = 666.

228642183 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 (228642179) and next prime (228642187).

It is not a de Polignac number, because 228642183 - 2² = 228642179 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228642187) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 41041 + ... + 46277.

Almost surely, 2^228642183 is an apocalyptic number.

228642183 is a deficient number, since it is larger than the sum of its proper divisors (204875649).

228642183 is a wasteful number, since it uses less digits than its factorization.

228642183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274 (or 5258 counting only the distinct ones).

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

The square root of 228642183 is about 15120.9187220883. The cubic root of 228642183 is about 611.4844995845.

It can be divided in two parts, 228 and 642183, that added together give a triangular number (642411 = T₁₁₃₃).

The spelling of 228642183 in words is "two hundred twenty-eight million, six hundred forty-two thousand, one hundred eighty-three".