228745564 has 6 divisors (see below), whose sum is σ = 400304744. Its totient is φ = 114372780.

The previous prime is 228745553. The next prime is 228745597. The reversal of 228745564 is 465547822.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 228745564.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28593192 + ... + 28593199.

Almost surely, 2^228745564 is an apocalyptic number.

It is an amenable number.

228745564 is a deficient number, since it is larger than the sum of its proper divisors (171559180).

228745564 is a wasteful number, since it uses less digits than its factorization.

228745564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57186395 (or 57186393 counting only the distinct ones).

The product of its digits is 537600, while the sum is 43.

The square root of 228745564 is about 15124.3368119068. The cubic root of 228745564 is about 611.5766469927.

The spelling of 228745564 in words is "two hundred twenty-eight million, seven hundred forty-five thousand, five hundred sixty-four".