18994614 has 8 divisors (see below), whose sum is σ = 37989240. Its totient is φ = 6331536.

The previous prime is 18994609. The next prime is 18994643. The reversal of 18994614 is 41649981.

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

18994614 is an admirable number.

It is a super-2 number, since 2×18994614² = 721590722017992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1582879 + ... + 1582890.

It is an arithmetic number, because the mean of its divisors is an integer number (4748655).

Almost surely, 2^18994614 is an apocalyptic number.

18994614 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18994614 is a wasteful number, since it uses less digits than its factorization.

18994614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165774.

The product of its digits is 62208, while the sum is 42.

The square root of 18994614 is about 4358.2810831795. The cubic root of 18994614 is about 266.8149484344.

The spelling of 18994614 in words is "eighteen million, nine hundred ninety-four thousand, six hundred fourteen".