28827180 has 72 divisors (see below), whose sum is σ = 92055600. Its totient is φ = 7281792.

The previous prime is 28827173. The next prime is 28827193. The reversal of 28827180 is 8172882.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 795 + ... + 7634.

It is an arithmetic number, because the mean of its divisors is an integer number (1278550).

Almost surely, 2^28827180 is an apocalyptic number.

28827180 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 28827180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46027800).

28827180 is an abundant number, since it is smaller than the sum of its proper divisors (63228420).

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

28827180 is a wasteful number, since it uses less digits than its factorization.

28827180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8463 (or 8458 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 28827180 is about 5369.0948957902. The cubic root of 28827180 is about 306.6201699091.

The spelling of 28827180 in words is "twenty-eight million, eight hundred twenty-seven thousand, one hundred eighty".