18267016 has 8 divisors (see below), whose sum is σ = 34250670. Its totient is φ = 9133504.

The previous prime is 18267001. The next prime is 18267019. The reversal of 18267016 is 61076281.

It can be written as a sum of positive squares in only one way, i.e., 9326916 + 8940100 = 3054^2 + 2990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (18267019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1141681 + ... + 1141696.

Almost surely, 2^18267016 is an apocalyptic number.

It is an amenable number.

18267016 is a deficient number, since it is larger than the sum of its proper divisors (15983654).

18267016 is a wasteful number, since it uses less digits than its factorization.

18267016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283383 (or 2283379 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 18267016 is about 4273.9929808085. The cubic root of 18267016 is about 263.3636725535.

The spelling of 18267016 in words is "eighteen million, two hundred sixty-seven thousand, sixteen".