18012634 has 8 divisors (see below), whose sum is σ = 28193760. Its totient is φ = 8614716.

The previous prime is 18012613. The next prime is 18012647. The reversal of 18012634 is 43621081.

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

It is a junction number, because it is equal to n+sod(n) for n = 18012599 and 18012608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195744 + ... + 195835.

It is an arithmetic number, because the mean of its divisors is an integer number (3524220).

Almost surely, 2^18012634 is an apocalyptic number.

18012634 is a deficient number, since it is larger than the sum of its proper divisors (10181126).

18012634 is a wasteful number, since it uses less digits than its factorization.

18012634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391604.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 18012634 is about 4244.1293571238. The cubic root of 18012634 is about 262.1354407231.

The spelling of 18012634 in words is "eighteen million, twelve thousand, six hundred thirty-four".