28849760 has 24 divisors (see below), whose sum is σ = 68157936. Its totient is φ = 11539840.

The previous prime is 28849759. The next prime is 28849783. The reversal of 28849760 is 6794882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89996 + ... + 90315.

It is an arithmetic number, because the mean of its divisors is an integer number (2839914).

Almost surely, 2^28849760 is an apocalyptic number.

28849760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28849760 is an abundant number, since it is smaller than the sum of its proper divisors (39308176).

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

28849760 is a wasteful number, since it uses less digits than its factorization.

28849760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180326 (or 180318 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 28849760 is about 5371.1972594572. The cubic root of 28849760 is about 306.7002063716.

The spelling of 28849760 in words is "twenty-eight million, eight hundred forty-nine thousand, seven hundred sixty".