18067138 has 16 divisors (see below), whose sum is σ = 29193120. Its totient is φ = 8358336.

The previous prime is 18067109. The next prime is 18067177. The reversal of 18067138 is 83176081.

It is a super-2 number, since 2×18067138² = 652842951022088, which contains 22 as substring.

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, 3895 + ... + 7162.

It is an arithmetic number, because the mean of its divisors is an integer number (1824570).

Almost surely, 2^18067138 is an apocalyptic number.

18067138 is a deficient number, since it is larger than the sum of its proper divisors (11125982).

18067138 is a wasteful number, since it uses less digits than its factorization.

18067138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11121.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 18067138 is about 4250.5456120362. The cubic root of 18067138 is about 262.3995709547.

The spelling of 18067138 in words is "eighteen million, sixty-seven thousand, one hundred thirty-eight".