28226808 has 48 divisors (see below), whose sum is σ = 76756680. Its totient is φ = 9370944.

The previous prime is 28226797. The next prime is 28226827. The reversal of 28226808 is 80862282.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21466 + ... + 22742.

Almost surely, 2^28226808 is an apocalyptic number.

It is an amenable number.

28226808 is an abundant number, since it is smaller than the sum of its proper divisors (48529872).

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

28226808 is a wasteful number, since it uses less digits than its factorization.

28226808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1589 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 28226808 is about 5312.8907385716. The cubic root of 28226808 is about 304.4766012094.

The spelling of 28226808 in words is "twenty-eight million, two hundred twenty-six thousand, eight hundred eight".