18674446 has 8 divisors (see below), whose sum is σ = 32013360. Its totient is φ = 8003328.

The previous prime is 18674437. The next prime is 18674471. The reversal of 18674446 is 64447681.

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 = 18674399 and 18674408.

It is a congruent number.

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, 666931 + ... + 666958.

It is an arithmetic number, because the mean of its divisors is an integer number (4001670).

Almost surely, 2^18674446 is an apocalyptic number.

18674446 is a deficient number, since it is larger than the sum of its proper divisors (13338914).

18674446 is a wasteful number, since it uses less digits than its factorization.

18674446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333898.

The product of its digits is 129024, while the sum is 40.

The square root of 18674446 is about 4321.3939880552. The cubic root of 18674446 is about 265.3073258994.

The spelling of 18674446 in words is "eighteen million, six hundred seventy-four thousand, four hundred forty-six".