28071160 has 64 divisors (see below), whose sum is σ = 69904800. Its totient is φ = 10077696.

The previous prime is 28071119. The next prime is 28071187. The reversal of 28071160 is 6117082.

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 15 ways as a sum of consecutive naturals, for example, 18511 + ... + 19969.

Almost surely, 2^28071160 is an apocalyptic number.

28071160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28071160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34952400).

28071160 is an abundant number, since it is smaller than the sum of its proper divisors (41833640).

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

28071160 is a wasteful number, since it uses less digits than its factorization.

28071160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 28071160 is about 5298.2223433903. Note that the first 3 decimals coincide. The cubic root of 28071160 is about 303.9159220394.

The spelling of 28071160 in words is "twenty-eight million, seventy-one thousand, one hundred sixty".