28097160 has 256 divisors, whose sum is σ = 108380160. Its totient is φ = 5667840.

The previous prime is 28097159. The next prime is 28097161. The reversal of 28097160 is 6179082.

It is an interprime number because it is at equal distance from previous prime (28097159) and next prime (28097161).

It is not an unprimeable number, because it can be changed into a prime (28097161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 338479 + ... + 338561.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^28097160 is an apocalyptic number.

28097160 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 28097160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54190080).

28097160 is an abundant number, since it is smaller than the sum of its proper divisors (80283000).

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

28097160 is a wasteful number, since it uses less digits than its factorization.

28097160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 28097160 is about 5300.6754286600. The cubic root of 28097160 is about 304.0097238349.

The spelling of 28097160 in words is "twenty-eight million, ninety-seven thousand, one hundred sixty".