228696588 has 24 divisors (see below), whose sum is σ = 592917360. Its totient is φ = 76232160.

The previous prime is 228696553. The next prime is 228696599. The reversal of 228696588 is 885696822.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1058673 + ... + 1058888.

It is an arithmetic number, because the mean of its divisors is an integer number (24704890).

Almost surely, 2^228696588 is an apocalyptic number.

It is an amenable number.

228696588 is an abundant number, since it is smaller than the sum of its proper divisors (364220772).

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

228696588 is a wasteful number, since it uses less digits than its factorization.

228696588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117574 (or 2117566 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 228696588 is about 15122.7176129160. The cubic root of 228696588 is about 611.5329962871.

The spelling of 228696588 in words is "two hundred twenty-eight million, six hundred ninety-six thousand, five hundred eighty-eight".