28808322 has 32 divisors (see below), whose sum is σ = 59439744. Its totient is φ = 9302400.

The previous prime is 28808293. The next prime is 28808357. The reversal of 28808322 is 22380882.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44203 + ... + 44849.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 2^28808322 is an apocalyptic number.

28808322 is an abundant number, since it is smaller than the sum of its proper divisors (30631422).

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

28808322 is a wasteful number, since it uses less digits than its factorization.

28808322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 28808322 is about 5367.3384465673. The cubic root of 28808322 is about 306.5532943136.

The spelling of 28808322 in words is "twenty-eight million, eight hundred eight thousand, three hundred twenty-two".