28560180 has 96 divisors (see below), whose sum is σ = 88260480. Its totient is φ = 6842880.

The previous prime is 28560179. The next prime is 28560199. The reversal of 28560180 is 8106582.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71742 + ... + 72138.

It is an arithmetic number, because the mean of its divisors is an integer number (919380).

Almost surely, 2^28560180 is an apocalyptic number.

28560180 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 28560180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44130240).

28560180 is an abundant number, since it is smaller than the sum of its proper divisors (59700300).

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

28560180 is a wasteful number, since it uses less digits than its factorization.

28560180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 28560180 is about 5344.1725271552. The cubic root of 28560180 is about 305.6705840314.

The spelling of 28560180 in words is "twenty-eight million, five hundred sixty thousand, one hundred eighty".