18882798 has 16 divisors (see below), whose sum is σ = 41198976. Its totient is φ = 5722040.

The previous prime is 18882781. The next prime is 18882803. The reversal of 18882798 is 89728881.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18882798.

It is a congruent number.

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, 142986 + ... + 143117.

It is an arithmetic number, because the mean of its divisors is an integer number (2574936).

Almost surely, 2^18882798 is an apocalyptic number.

18882798 is an abundant number, since it is smaller than the sum of its proper divisors (22316178).

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

18882798 is a wasteful number, since it uses less digits than its factorization.

18882798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286119.

The product of its digits is 516096, while the sum is 51.

The square root of 18882798 is about 4345.4341555246. The cubic root of 18882798 is about 266.2903626348.

The spelling of 18882798 in words is "eighteen million, eight hundred eighty-two thousand, seven hundred ninety-eight".