28375180 has 12 divisors (see below), whose sum is σ = 59587920. Its totient is φ = 11350064.

The previous prime is 28375177. The next prime is 28375181. The reversal of 28375180 is 8157382.

It is not an unprimeable number, because it can be changed into a prime (28375181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709360 + ... + 709399.

It is an arithmetic number, because the mean of its divisors is an integer number (4965660).

Almost surely, 2^28375180 is an apocalyptic number.

28375180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28375180 is an abundant number, since it is smaller than the sum of its proper divisors (31212740).

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

28375180 is a wasteful number, since it uses less digits than its factorization.

28375180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418768 (or 1418766 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 28375180 is about 5326.8358337760. The cubic root of 28375180 is about 305.0091549702.

The spelling of 28375180 in words is "twenty-eight million, three hundred seventy-five thousand, one hundred eighty".