28605252 has 48 divisors (see below), whose sum is σ = 74370240. Its totient is φ = 8496768.

The previous prime is 28605251. The next prime is 28605257. The reversal of 28605252 is 25250682.

28605252 is a modest number, since divided by 5252 gives 2860 as remainder.

It is not an unprimeable number, because it can be changed into a prime (28605251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1363 + ... + 7685.

It is an arithmetic number, because the mean of its divisors is an integer number (1549380).

Almost surely, 2^28605252 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 28605252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37185120).

28605252 is an abundant number, since it is smaller than the sum of its proper divisors (45764988).

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

28605252 is a wasteful number, since it uses less digits than its factorization.

28605252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372 (or 6370 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 28605252 is about 5348.3877944667. The cubic root of 28605252 is about 305.8312966443.

The spelling of 28605252 in words is "twenty-eight million, six hundred five thousand, two hundred fifty-two".