28846228 has 12 divisors (see below), whose sum is σ = 50542912. Its totient is φ = 14405400.

The previous prime is 28846219. The next prime is 28846231. The reversal of 28846228 is 82264882.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348 + ... + 7603.

Almost surely, 2^28846228 is an apocalyptic number.

It is an amenable number.

28846228 is a deficient number, since it is larger than the sum of its proper divisors (21696684).

28846228 is a wasteful number, since it uses less digits than its factorization.

28846228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8862 (or 8860 counting only the distinct ones).

The product of its digits is 98304, while the sum is 40.

The square root of 28846228 is about 5370.8684586387. The cubic root of 28846228 is about 306.6876896951.

The spelling of 28846228 in words is "twenty-eight million, eight hundred forty-six thousand, two hundred twenty-eight".