28302268 has 12 divisors (see below), whose sum is σ = 49752640. Its totient is φ = 14087232.

The previous prime is 28302257. The next prime is 28302269. The reversal of 28302268 is 86220382.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28302269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14973 + ... + 16756.

Almost surely, 2^28302268 is an apocalyptic number.

It is an amenable number.

28302268 is a deficient number, since it is larger than the sum of its proper divisors (21450372).

28302268 is a wasteful number, since it uses less digits than its factorization.

28302268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31956 (or 31954 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28302268 is about 5319.9875939705. The cubic root of 28302268 is about 304.7476834680.

The spelling of 28302268 in words is "twenty-eight million, three hundred two thousand, two hundred sixty-eight".