18046249 has 8 divisors (see below), whose sum is σ = 19725440. Its totient is φ = 16408656.

The previous prime is 18046241. The next prime is 18046279. The reversal of 18046249 is 94264081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18046249 - 2³ = 18046241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18046241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9489 + ... + 11230.

It is an arithmetic number, because the mean of its divisors is an integer number (2465680).

Almost surely, 2^18046249 is an apocalyptic number.

It is an amenable number.

18046249 is a deficient number, since it is larger than the sum of its proper divisors (1679191).

18046249 is a wasteful number, since it uses less digits than its factorization.

18046249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20799.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 18046249 is about 4248.0876874189. The cubic root of 18046249 is about 262.2984042499.

The spelling of 18046249 in words is "eighteen million, forty-six thousand, two hundred forty-nine".