18382253 has 8 divisors (see below), whose sum is σ = 20488320. Its totient is φ = 16390080.

The previous prime is 18382223. The next prime is 18382261. The reversal of 18382253 is 35228381.

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 18382253 - 2¹⁰ = 18381229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18382213) 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, 28133 + ... + 28778.

It is an arithmetic number, because the mean of its divisors is an integer number (2561040).

Almost surely, 2^18382253 is an apocalyptic number.

It is an amenable number.

18382253 is a deficient number, since it is larger than the sum of its proper divisors (2106067).

18382253 is a wasteful number, since it uses less digits than its factorization.

18382253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56947.

The product of its digits is 11520, while the sum is 32.

The square root of 18382253 is about 4287.4529735030. The cubic root of 18382253 is about 263.9163197060.

The spelling of 18382253 in words is "eighteen million, three hundred eighty-two thousand, two hundred fifty-three".