228582644 has 18 divisors (see below), whose sum is σ = 402151890. Its totient is φ = 113685232.

The previous prime is 228582643. The next prime is 228582659. The reversal of 228582644 is 446285822.

It can be written as a sum of positive squares in only one way, i.e., 128822500 + 99760144 = 11350^2 + 9988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228582643) 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, 205562 + ... + 206670.

Almost surely, 2^228582644 is an apocalyptic number.

It is an amenable number.

228582644 is a deficient number, since it is larger than the sum of its proper divisors (173569246).

228582644 is a wasteful number, since it uses less digits than its factorization.

228582644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567 (or 1338 counting only the distinct ones).

The product of its digits is 245760, while the sum is 41.

The square root of 228582644 is about 15118.9498312548. The cubic root of 228582644 is about 611.4314176090.

The spelling of 228582644 in words is "two hundred twenty-eight million, five hundred eighty-two thousand, six hundred forty-four".