28045882 has 8 divisors (see below), whose sum is σ = 42485652. Its totient is φ = 13884000.

The previous prime is 28045879. The next prime is 28045931. The reversal of 28045882 is 28854082.

It can be written as a sum of positive squares in 2 ways, for example, as 27973521 + 72361 = 5289^2 + 269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69219 + ... + 69622.

Almost surely, 2^28045882 is an apocalyptic number.

28045882 is a deficient number, since it is larger than the sum of its proper divisors (14439770).

28045882 is a wasteful number, since it uses less digits than its factorization.

28045882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138944.

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 28045882 is about 5295.8362890105. The cubic root of 28045882 is about 303.8246695009.

The spelling of 28045882 in words is "twenty-eight million, forty-five thousand, eight hundred eighty-two".