18080268 has 12 divisors (see below), whose sum is σ = 42187320. Its totient is φ = 6026752.

The previous prime is 18080243. The next prime is 18080273. The reversal of 18080268 is 86208081.

It is a tau number, because it is divible by the number of its divisors (12).

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, 753333 + ... + 753356.

It is an arithmetic number, because the mean of its divisors is an integer number (3515610).

Almost surely, 2^18080268 is an apocalyptic number.

It is an amenable number.

18080268 is an abundant number, since it is smaller than the sum of its proper divisors (24107052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18080268 is a wasteful number, since it uses less digits than its factorization.

18080268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506696 (or 1506694 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 18080268 is about 4252.0898391262. The cubic root of 18080268 is about 262.4631204425.

The spelling of 18080268 in words is "eighteen million, eighty thousand, two hundred sixty-eight".