228790564 has 24 divisors (see below), whose sum is σ = 405204800. Its totient is φ = 113024160.

The previous prime is 228790531. The next prime is 228790577. The reversal of 228790564 is 465097822.

It is a self number, because there is not a number n which added to its sum of digits gives 228790564.

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, 248497 + ... + 249415.

Almost surely, 2^228790564 is an apocalyptic number.

It is an amenable number.

228790564 is a deficient number, since it is larger than the sum of its proper divisors (176414236).

228790564 is a wasteful number, since it uses less digits than its factorization.

228790564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1601 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 228790564 is about 15125.8244072844. The cubic root of 228790564 is about 611.6167485275.

The spelling of 228790564 in words is "two hundred twenty-eight million, seven hundred ninety thousand, five hundred sixty-four".