18306014 has 4 divisors (see below), whose sum is σ = 27459024. Its totient is φ = 9153006.

The previous prime is 18306011. The next prime is 18306017. The reversal of 18306014 is 41060381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41060381 = 61 ⋅673121.

It is an interprime number because it is at equal distance from previous prime (18306011) and next prime (18306017).

It is a super-2 number, since 2×18306014² = 670220297136392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18306011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4576502 + ... + 4576505.

It is an arithmetic number, because the mean of its divisors is an integer number (6864756).

Almost surely, 2^18306014 is an apocalyptic number.

18306014 is a deficient number, since it is larger than the sum of its proper divisors (9153010).

18306014 is an equidigital number, since it uses as much as digits as its factorization.

18306014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9153009.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 18306014 is about 4278.5527927092. The cubic root of 18306014 is about 263.5509564949.

Adding to 18306014 its reverse (41060381), we get a palindrome (59366395).

The spelling of 18306014 in words is "eighteen million, three hundred six thousand, fourteen".