18065372 has 12 divisors (see below), whose sum is σ = 34046376. Its totient is φ = 8337840.

The previous prime is 18065357. The next prime is 18065381. The reversal of 18065372 is 27356081.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173654 + ... + 173757.

It is an arithmetic number, because the mean of its divisors is an integer number (2837198).

Almost surely, 2^18065372 is an apocalyptic number.

It is an amenable number.

18065372 is a deficient number, since it is larger than the sum of its proper divisors (15981004).

18065372 is a wasteful number, since it uses less digits than its factorization.

18065372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347428 (or 347426 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 18065372 is about 4250.3378689229. The cubic root of 18065372 is about 262.3910211272.

The spelling of 18065372 in words is "eighteen million, sixty-five thousand, three hundred seventy-two".