18389714 has 16 divisors (see below), whose sum is σ = 31881600. Its totient is φ = 7792224.

The previous prime is 18389713. The next prime is 18389743. The reversal of 18389714 is 41798381.

It is not an unprimeable number, because it can be changed into a prime (18389713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6134 + ... + 8625.

It is an arithmetic number, because the mean of its divisors is an integer number (1992600).

Almost surely, 2^18389714 is an apocalyptic number.

18389714 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18389714 is a deficient number, since it is larger than the sum of its proper divisors (13491886).

18389714 is a wasteful number, since it uses less digits than its factorization.

18389714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14857.

The product of its digits is 48384, while the sum is 41.

The square root of 18389714 is about 4288.3229822391. The cubic root of 18389714 is about 263.9520210483.

The spelling of 18389714 in words is "eighteen million, three hundred eighty-nine thousand, seven hundred fourteen".