18742214 has 4 divisors (see below), whose sum is σ = 28113324. Its totient is φ = 9371106.

The previous prime is 18742201. The next prime is 18742219. The reversal of 18742214 is 41224781.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18742219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4685552 + ... + 4685555.

It is an arithmetic number, because the mean of its divisors is an integer number (7028331).

Almost surely, 2^18742214 is an apocalyptic number.

18742214 is a deficient number, since it is larger than the sum of its proper divisors (9371110).

18742214 is an equidigital number, since it uses as much as digits as its factorization.

18742214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9371109.

The product of its digits is 3584, while the sum is 29.

The square root of 18742214 is about 4329.2278757303. The cubic root of 18742214 is about 265.6278644951.

Adding to 18742214 its reverse (41224781), we get a palindrome (59966995).

The spelling of 18742214 in words is "eighteen million, seven hundred forty-two thousand, two hundred fourteen".