28351180 has 96 divisors (see below), whose sum is σ = 73156608. Its totient is φ = 9081600.

The previous prime is 28351177. The next prime is 28351187. The reversal of 28351180 is 8115382.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28351187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65565 + ... + 65995.

It is an arithmetic number, because the mean of its divisors is an integer number (762048).

Almost surely, 2^28351180 is an apocalyptic number.

28351180 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 28351180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36578304).

28351180 is an abundant number, since it is smaller than the sum of its proper divisors (44805428).

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

28351180 is a wasteful number, since it uses less digits than its factorization.

28351180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 28351180 is about 5324.5826127500. The cubic root of 28351180 is about 304.9231374891.

The spelling of 28351180 in words is "twenty-eight million, three hundred fifty-one thousand, one hundred eighty".