18480267 has 12 divisors (see below), whose sum is σ = 28747264. Its totient is φ = 11372400.

The previous prime is 18480251. The next prime is 18480269. The reversal of 18480267 is 76208481.

It is not a de Polignac number, because 18480267 - 2⁴ = 18480251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18480269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78859 + ... + 79092.

Almost surely, 2^18480267 is an apocalyptic number.

18480267 is a deficient number, since it is larger than the sum of its proper divisors (10266997).

18480267 is a wasteful number, since it uses less digits than its factorization.

18480267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157970 (or 157967 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 18480267 is about 4298.8681068393. The cubic root of 18480267 is about 264.3845549252.

The spelling of 18480267 in words is "eighteen million, four hundred eighty thousand, two hundred sixty-seven".