28119180 has 24 divisors (see below), whose sum is σ = 78733872. Its totient is φ = 7498432.

The previous prime is 28119151. The next prime is 28119199. The reversal of 28119180 is 8191182.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234267 + ... + 234386.

It is an arithmetic number, because the mean of its divisors is an integer number (3280578).

Almost surely, 2^28119180 is an apocalyptic number.

28119180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28119180 is an abundant number, since it is smaller than the sum of its proper divisors (50614692).

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

28119180 is a wasteful number, since it uses less digits than its factorization.

28119180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468665 (or 468663 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 30.

The square root of 28119180 is about 5302.7521156471. The cubic root of 28119180 is about 304.0891214927.

The spelling of 28119180 in words is "twenty-eight million, one hundred nineteen thousand, one hundred eighty".