28182988 has 12 divisors (see below), whose sum is σ = 49409752. Its totient is φ = 14065920.

The previous prime is 28182971. The next prime is 28182989. The reversal of 28182988 is 88928182.

It is not an unprimeable number, because it can be changed into a prime (28182989) 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, 3798 + ... + 8413.

Almost surely, 2^28182988 is an apocalyptic number.

It is an amenable number.

28182988 is a deficient number, since it is larger than the sum of its proper divisors (21226764).

28182988 is a wasteful number, since it uses less digits than its factorization.

28182988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12792 (or 12790 counting only the distinct ones).

The product of its digits is 147456, while the sum is 46.

The square root of 28182988 is about 5308.7652048287. The cubic root of 28182988 is about 304.3189605857.

The spelling of 28182988 in words is "twenty-eight million, one hundred eighty-two thousand, nine hundred eighty-eight".