28199160 has 96 divisors (see below), whose sum is σ = 99992880. Its totient is φ = 6835200.

The previous prime is 28199159. The next prime is 28199177. The reversal of 28199160 is 6199182.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 400 + ... + 7520.

Almost surely, 2^28199160 is an apocalyptic number.

28199160 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 28199160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49996440).

28199160 is an abundant number, since it is smaller than the sum of its proper divisors (71793720).

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

28199160 is a wasteful number, since it uses less digits than its factorization.

28199160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149 (or 7142 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 28199160 is about 5310.2881277761. The cubic root of 28199160 is about 304.3771576936.

The spelling of 28199160 in words is "twenty-eight million, one hundred ninety-nine thousand, one hundred sixty".