18947014 has 8 divisors (see below), whose sum is σ = 29337408. Its totient is φ = 9167880.

The previous prime is 18946999. The next prime is 18947017. The reversal of 18947014 is 41074981.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18947017) by changing a digit.

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, 152737 + ... + 152860.

It is an arithmetic number, because the mean of its divisors is an integer number (3667176).

Almost surely, 2^18947014 is an apocalyptic number.

18947014 is a deficient number, since it is larger than the sum of its proper divisors (10390394).

18947014 is a wasteful number, since it uses less digits than its factorization.

18947014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305630.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 18947014 is about 4352.8167891608. The cubic root of 18947014 is about 266.5918849336.

The spelling of 18947014 in words is "eighteen million, nine hundred forty-seven thousand, fourteen".