28828960 has 24 divisors (see below), whose sum is σ = 68108796. Its totient is φ = 11531520.

The previous prime is 28828937. The next prime is 28828997. The reversal of 28828960 is 6982882.

It can be written as a sum of positive squares in 2 ways, for example, as 27583504 + 1245456 = 5252^2 + 1116^2 .

It is a super-2 number, since 2×28828960² = 1662217869363200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 89931 + ... + 90250.

Almost surely, 2^28828960 is an apocalyptic number.

28828960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28828960 is an abundant number, since it is smaller than the sum of its proper divisors (39279836).

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

28828960 is a wasteful number, since it uses less digits than its factorization.

28828960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180196 (or 180188 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 28828960 is about 5369.2606567385. The cubic root of 28828960 is about 306.6264807666.

The spelling of 28828960 in words is "twenty-eight million, eight hundred twenty-eight thousand, nine hundred sixty".