18445834 has 8 divisors (see below), whose sum is σ = 30184128. Its totient is φ = 8384460.

The previous prime is 18445829. The next prime is 18445841. The reversal of 18445834 is 43854481.

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 = 18445793 and 18445802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419202 + ... + 419245.

It is an arithmetic number, because the mean of its divisors is an integer number (3773016).

Almost surely, 2^18445834 is an apocalyptic number.

18445834 is a deficient number, since it is larger than the sum of its proper divisors (11738294).

18445834 is a wasteful number, since it uses less digits than its factorization.

18445834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838460.

The product of its digits is 61440, while the sum is 37.

The square root of 18445834 is about 4294.8613481695. The cubic root of 18445834 is about 264.2202497008.

The spelling of 18445834 in words is "eighteen million, four hundred forty-five thousand, eight hundred thirty-four".