18320614 has 24 divisors (see below), whose sum is σ = 30238920. Its totient is φ = 8319168.

The previous prime is 18320609. The next prime is 18320629. The reversal of 18320614 is 41602381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22242 + ... + 23050.

It is an arithmetic number, because the mean of its divisors is an integer number (1259955).

Almost surely, 2^18320614 is an apocalyptic number.

18320614 is a deficient number, since it is larger than the sum of its proper divisors (11918306).

18320614 is a wasteful number, since it uses less digits than its factorization.

18320614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 18320614 is about 4280.2586370452. The cubic root of 18320614 is about 263.6210030830.

Adding to 18320614 its reverse (41602381), we get a palindrome (59922995).

The spelling of 18320614 in words is "eighteen million, three hundred twenty thousand, six hundred fourteen".