228667564 has 24 divisors (see below), whose sum is σ = 420876288. Its totient is φ = 108496080.

The previous prime is 228667559. The next prime is 228667597. The reversal of 228667564 is 465766822.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1899 + ... + 21469.

It is an arithmetic number, because the mean of its divisors is an integer number (17536512).

Almost surely, 2^228667564 is an apocalyptic number.

It is an amenable number.

228667564 is a deficient number, since it is larger than the sum of its proper divisors (192208724).

228667564 is a wasteful number, since it uses less digits than its factorization.

228667564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19725 (or 19723 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 228667564 is about 15121.7579665858. The cubic root of 228667564 is about 611.5071252050.

The spelling of 228667564 in words is "two hundred twenty-eight million, six hundred sixty-seven thousand, five hundred sixty-four".