18994914 has 48 divisors (see below), whose sum is σ = 42456960. Its totient is φ = 6135360.

The previous prime is 18994907. The next prime is 18994979. The reversal of 18994914 is 41949981.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18994914.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113659 + ... + 113825.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^18994914 is an apocalyptic number.

18994914 is an abundant number, since it is smaller than the sum of its proper divisors (23462046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18994914 is a wasteful number, since it uses less digits than its factorization.

18994914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 332 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 18994914 is about 4358.3155002822. The cubic root of 18994914 is about 266.8163531144.

The spelling of 18994914 in words is "eighteen million, nine hundred ninety-four thousand, nine hundred fourteen".