28120096 has 24 divisors (see below), whose sum is σ = 56714364. Its totient is φ = 13716480.

The previous prime is 28120087. The next prime is 28120109. The reversal of 28120096 is 69002182.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20830096 + 7290000 = 4564^2 + 2700^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

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, 9405 + ... + 12028.

Almost surely, 2^28120096 is an apocalyptic number.

It is an amenable number.

28120096 is an abundant number, since it is smaller than the sum of its proper divisors (28594268).

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

28120096 is a wasteful number, since it uses less digits than its factorization.

28120096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21484 (or 21476 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 28120096 is about 5302.8384851889. The cubic root of 28120096 is about 304.0924234217.

The spelling of 28120096 in words is "twenty-eight million, one hundred twenty thousand, ninety-six".