18309314 has 16 divisors (see below), whose sum is σ = 28263840. Its totient is φ = 8890560.

The previous prime is 18309307. The next prime is 18309337. The reversal of 18309314 is 41390381.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17642 + ... + 18650.

It is an arithmetic number, because the mean of its divisors is an integer number (1766490).

Almost surely, 2^18309314 is an apocalyptic number.

18309314 is a deficient number, since it is larger than the sum of its proper divisors (9954526).

18309314 is a wasteful number, since it uses less digits than its factorization.

18309314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 18309314 is about 4278.9384197485. The cubic root of 18309314 is about 263.5667921997.

Adding to 18309314 its reverse (41390381), we get a palindrome (59699695).

The spelling of 18309314 in words is "eighteen million, three hundred nine thousand, three hundred fourteen".