18679882 has 8 divisors (see below), whose sum is σ = 30175236. Its totient is φ = 8621472.

The previous prime is 18679873. The next prime is 18679883. The reversal of 18679882 is 28897681.

It can be written as a sum of positive squares in 2 ways, for example, as 17816841 + 863041 = 4221^2 + 929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18679883) 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, 359203 + ... + 359254.

Almost surely, 2^18679882 is an apocalyptic number.

18679882 is a deficient number, since it is larger than the sum of its proper divisors (11495354).

18679882 is a wasteful number, since it uses less digits than its factorization.

18679882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718472.

The product of its digits is 387072, while the sum is 49.

The square root of 18679882 is about 4322.0229060013. The cubic root of 18679882 is about 265.3330664346. Note that the first 3 decimals are identical.

The spelling of 18679882 in words is "eighteen million, six hundred seventy-nine thousand, eight hundred eighty-two".