18074642 has 8 divisors (see below), whose sum is σ = 28290816. Its totient is φ = 8644372.

The previous prime is 18074629. The next prime is 18074671. The reversal of 18074642 is 24647081.

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 = 18074599 and 18074608.

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, 196418 + ... + 196509.

It is an arithmetic number, because the mean of its divisors is an integer number (3536352).

Almost surely, 2^18074642 is an apocalyptic number.

18074642 is a deficient number, since it is larger than the sum of its proper divisors (10216174).

18074642 is a wasteful number, since it uses less digits than its factorization.

18074642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392952.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 18074642 is about 4251.4282306067. The cubic root of 18074642 is about 262.4358942476.

The spelling of 18074642 in words is "eighteen million, seventy-four thousand, six hundred forty-two".