28670268 has 24 divisors (see below), whose sum is σ = 72979200. Its totient is φ = 8687920.

The previous prime is 28670261. The next prime is 28670287. The reversal of 28670268 is 86207682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28670261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108468 + ... + 108731.

It is an arithmetic number, because the mean of its divisors is an integer number (3040800).

Almost surely, 2^28670268 is an apocalyptic number.

It is an amenable number.

28670268 is an abundant number, since it is smaller than the sum of its proper divisors (44308932).

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

28670268 is a wasteful number, since it uses less digits than its factorization.

28670268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217217 (or 217215 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 28670268 is about 5354.4624380044. The cubic root of 28670268 is about 306.0628261790.

The spelling of 28670268 in words is "twenty-eight million, six hundred seventy thousand, two hundred sixty-eight".