28105160 has 32 divisors (see below), whose sum is σ = 64186560. Its totient is φ = 11073216.

The previous prime is 28105157. The next prime is 28105183. The reversal of 28105160 is 6150182.

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, 2564 + ... + 7923.

It is an arithmetic number, because the mean of its divisors is an integer number (2005830).

Almost surely, 2^28105160 is an apocalyptic number.

28105160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28105160 is an abundant number, since it is smaller than the sum of its proper divisors (36081400).

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

28105160 is a wasteful number, since it uses less digits than its factorization.

28105160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10565 (or 10561 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 28105160 is about 5301.4299957653. The cubic root of 28105160 is about 304.0385742833.

The spelling of 28105160 in words is "twenty-eight million, one hundred five thousand, one hundred sixty".