28001852 has 24 divisors (see below), whose sum is σ = 50676192. Its totient is φ = 13529600.

The previous prime is 28001837. The next prime is 28001881. The reversal of 28001852 is 25810082.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17777 + ... + 19287.

It is an arithmetic number, because the mean of its divisors is an integer number (2111508).

Almost surely, 2^28001852 is an apocalyptic number.

It is an amenable number.

28001852 is a deficient number, since it is larger than the sum of its proper divisors (22674340).

28001852 is a wasteful number, since it uses less digits than its factorization.

28001852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 28001852 is about 5291.6776167866. The cubic root of 28001852 is about 303.6655919956.

The spelling of 28001852 in words is "twenty-eight million, one thousand, eight hundred fifty-two".