18949214 has 8 divisors (see below), whose sum is σ = 28684920. Its totient is φ = 9387576.

The previous prime is 18949211. The next prime is 18949243. The reversal of 18949214 is 41294981.

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

It is a super-2 number, since 2×18949214² = 718145422435592, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18949211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43244 + ... + 43679.

It is an arithmetic number, because the mean of its divisors is an integer number (3585615).

Almost surely, 2^18949214 is an apocalyptic number.

18949214 is a deficient number, since it is larger than the sum of its proper divisors (9735706).

18949214 is a wasteful number, since it uses less digits than its factorization.

18949214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87034.

The product of its digits is 20736, while the sum is 38.

The square root of 18949214 is about 4353.0694917495. The cubic root of 18949214 is about 266.6022028206.

The spelling of 18949214 in words is "eighteen million, nine hundred forty-nine thousand, two hundred fourteen".