18091852 has 6 divisors (see below), whose sum is σ = 31660748. Its totient is φ = 9045924.

The previous prime is 18091849. The next prime is 18091861. The reversal of 18091852 is 25819081.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261478 + ... + 2261485.

Almost surely, 2^18091852 is an apocalyptic number.

It is an amenable number.

18091852 is a deficient number, since it is larger than the sum of its proper divisors (13568896).

18091852 is a wasteful number, since it uses less digits than its factorization.

18091852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522967 (or 4522965 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 18091852 is about 4253.4517747354. The cubic root of 18091852 is about 262.5191617154.

The spelling of 18091852 in words is "eighteen million, ninety-one thousand, eight hundred fifty-two".