28808052 has 192 divisors, whose sum is σ = 91521024. Its totient is φ = 6842880.

The previous prime is 28808051. The next prime is 28808071. The reversal of 28808052 is 25080882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28808051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 778578 + ... + 778614.

It is an arithmetic number, because the mean of its divisors is an integer number (476672).

Almost surely, 2^28808052 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 28808052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45760512).

28808052 is an abundant number, since it is smaller than the sum of its proper divisors (62712972).

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

28808052 is a wasteful number, since it uses less digits than its factorization.

28808052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 28808052 is about 5367.3132943774. The cubic root of 28808052 is about 306.5523366083.

The spelling of 28808052 in words is "twenty-eight million, eight hundred eight thousand, fifty-two".