18993614 has 8 divisors (see below), whose sum is σ = 28509408. Its totient is φ = 9490480.

The previous prime is 18993599. The next prime is 18993647. The reversal of 18993614 is 41639981.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2954 + ... + 6834.

It is an arithmetic number, because the mean of its divisors is an integer number (3563676).

Almost surely, 2^18993614 is an apocalyptic number.

18993614 is a deficient number, since it is larger than the sum of its proper divisors (9515794).

18993614 is a wasteful number, since it uses less digits than its factorization.

18993614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6330.

The product of its digits is 46656, while the sum is 41.

The square root of 18993614 is about 4358.1663575407. The cubic root of 18993614 is about 266.8102660609.

The spelling of 18993614 in words is "eighteen million, nine hundred ninety-three thousand, six hundred fourteen".