18715214 has 8 divisors (see below), whose sum is σ = 32083248. Its totient is φ = 8020800.

The previous prime is 18715211. The next prime is 18715223. The reversal of 18715214 is 41251781.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18715211) 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, 668387 + ... + 668414.

It is an arithmetic number, because the mean of its divisors is an integer number (4010406).

Almost surely, 2^18715214 is an apocalyptic number.

18715214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18715214 is a deficient number, since it is larger than the sum of its proper divisors (13368034).

18715214 is a wasteful number, since it uses less digits than its factorization.

18715214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336810.

The product of its digits is 2240, while the sum is 29.

The square root of 18715214 is about 4326.1084128810. The cubic root of 18715214 is about 265.5002488521.

Adding to 18715214 its reverse (41251781), we get a palindrome (59966995).

The spelling of 18715214 in words is "eighteen million, seven hundred fifteen thousand, two hundred fourteen".