18065672 has 32 divisors (see below), whose sum is σ = 36115200. Its totient is φ = 8452224.

The previous prime is 18065669. The next prime is 18065681. The reversal of 18065672 is 27656081.

It is a super-3 number, since 3×18065672³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

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, 7604 + ... + 9692.

It is an arithmetic number, because the mean of its divisors is an integer number (1128600).

Almost surely, 2^18065672 is an apocalyptic number.

It is an amenable number.

18065672 is a deficient number, since it is larger than the sum of its proper divisors (18049528).

18065672 is a wasteful number, since it uses less digits than its factorization.

18065672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165 (or 2161 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 18065672 is about 4250.3731600884. The cubic root of 18065672 is about 262.3924735720.

The spelling of 18065672 in words is "eighteen million, sixty-five thousand, six hundred seventy-two".