18382834 has 4 divisors (see below), whose sum is σ = 27574254. Its totient is φ = 9191416.

The previous prime is 18382829. The next prime is 18382841. The reversal of 18382834 is 43828381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18361225 + 21609 = 4285^2 + 147^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18382793 and 18382802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4595707 + ... + 4595710.

Almost surely, 2^18382834 is an apocalyptic number.

18382834 is a deficient number, since it is larger than the sum of its proper divisors (9191420).

18382834 is an equidigital number, since it uses as much as digits as its factorization.

18382834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9191419.

The product of its digits is 36864, while the sum is 37.

The square root of 18382834 is about 4287.5207288129. The cubic root of 18382834 is about 263.9191001734.

The spelling of 18382834 in words is "eighteen million, three hundred eighty-two thousand, eight hundred thirty-four".