18714946 has 4 divisors (see below), whose sum is σ = 28072422. Its totient is φ = 9357472.

The previous prime is 18714919. The next prime is 18714953. The reversal of 18714946 is 64941781.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13140625 + 5574321 = 3625^2 + 2361^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 18714899 and 18714908.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4678735 + ... + 4678738.

Almost surely, 2^18714946 is an apocalyptic number.

18714946 is a deficient number, since it is larger than the sum of its proper divisors (9357476).

18714946 is an equidigital number, since it uses as much as digits as its factorization.

18714946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9357475.

The product of its digits is 48384, while the sum is 40.

The square root of 18714946 is about 4326.0774380494. The cubic root of 18714946 is about 265.4989815337.

The spelling of 18714946 in words is "eighteen million, seven hundred fourteen thousand, nine hundred forty-six".