18279914 has 8 divisors (see below), whose sum is σ = 27571908. Its totient is φ = 9089280.

The previous prime is 18279907. The next prime is 18279923. The reversal of 18279914 is 41997281.

It can be written as a sum of positive squares in 2 ways, for example, as 13140625 + 5139289 = 3625^2 + 2267^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24887 + ... + 25610.

Almost surely, 2^18279914 is an apocalyptic number.

18279914 is a deficient number, since it is larger than the sum of its proper divisors (9291994).

18279914 is a wasteful number, since it uses less digits than its factorization.

18279914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50680.

The product of its digits is 36288, while the sum is 41.

The square root of 18279914 is about 4275.5016079988. The cubic root of 18279914 is about 263.4256433661.

The spelling of 18279914 in words is "eighteen million, two hundred seventy-nine thousand, nine hundred fourteen".