28099152 has 60 divisors (see below), whose sum is σ = 79619904. Its totient is φ = 9249600.

The previous prime is 28099133. The next prime is 28099187. The reversal of 28099152 is 25199082.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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, 10777 + ... + 13127.

Almost surely, 2^28099152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28099152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39809952).

28099152 is an abundant number, since it is smaller than the sum of its proper divisors (51520752).

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

28099152 is a wasteful number, since it uses less digits than its factorization.

28099152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448 (or 2439 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 28099152 is about 5300.8633259121. The cubic root of 28099152 is about 304.0169081085.

The spelling of 28099152 in words is "twenty-eight million, ninety-nine thousand, one hundred fifty-two".