228133204 has 12 divisors (see below), whose sum is σ = 429943444. Its totient is φ = 105292224.

The previous prime is 228133201. The next prime is 228133211. The reversal of 228133204 is 402331822.

It can be written as a sum of positive squares in 2 ways, for example, as 27060804 + 201072400 = 5202^2 + 14180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228133201) 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, 2193537 + ... + 2193640.

Almost surely, 2^228133204 is an apocalyptic number.

It is an amenable number.

228133204 is a deficient number, since it is larger than the sum of its proper divisors (201810240).

228133204 is a wasteful number, since it uses less digits than its factorization.

228133204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387194 (or 4387192 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 228133204 is about 15104.0790516999. The cubic root of 228133204 is about 611.0304218118.

The spelling of 228133204 in words is "two hundred twenty-eight million, one hundred thirty-three thousand, two hundred four".