228570885 has 24 divisors (see below), whose sum is σ = 397672704. Its totient is φ = 121448160.

The previous prime is 228570883. The next prime is 228570913. The reversal of 228570885 is 588075822.

It is not a de Polignac number, because 228570885 - 2¹ = 228570883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 228570885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228570883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2824 + ... + 21566.

It is an arithmetic number, because the mean of its divisors is an integer number (16569696).

Almost surely, 2^228570885 is an apocalyptic number.

It is an amenable number.

228570885 is a deficient number, since it is larger than the sum of its proper divisors (169101819).

228570885 is a wasteful number, since it uses less digits than its factorization.

228570885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19025 (or 19022 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 228570885 is about 15118.5609434232. The cubic root of 228570885 is about 611.4209327865.

The spelling of 228570885 in words is "two hundred twenty-eight million, five hundred seventy thousand, eight hundred eighty-five".