228238588 has 48 divisors (see below), whose sum is σ = 418461120. Its totient is φ = 108864000.

The previous prime is 228238579. The next prime is 228238589. The reversal of 228238588 is 885832822.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228238589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2093878 + ... + 2093986.

It is an arithmetic number, because the mean of its divisors is an integer number (8717940).

Almost surely, 2^228238588 is an apocalyptic number.

It is an amenable number.

228238588 is a deficient number, since it is larger than the sum of its proper divisors (190222532).

228238588 is a wasteful number, since it uses less digits than its factorization.

228238588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 356 counting only the distinct ones).

The product of its digits is 491520, while the sum is 46.

The square root of 228238588 is about 15107.5672429415. The cubic root of 228238588 is about 611.1244939243.

It can be divided in two parts, 228238 and 588, that added together give a triangular number (228826 = T₆₇₆).

The spelling of 228238588 in words is "two hundred twenty-eight million, two hundred thirty-eight thousand, five hundred eighty-eight".