18852238 has 8 divisors (see below), whose sum is σ = 28316232. Its totient is φ = 9413496.

The previous prime is 18852221. The next prime is 18852271. The reversal of 18852238 is 83225881.

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

It is a junction number, because it is equal to n+sod(n) for n = 18852197 and 18852206.

It is a congruent number.

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, 4320 + ... + 7507.

It is an arithmetic number, because the mean of its divisors is an integer number (3539529).

Almost surely, 2^18852238 is an apocalyptic number.

18852238 is a deficient number, since it is larger than the sum of its proper divisors (9463994).

18852238 is a wasteful number, since it uses less digits than its factorization.

18852238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12626.

The product of its digits is 30720, while the sum is 37.

The square root of 18852238 is about 4341.9163971684. The cubic root of 18852238 is about 266.1466299187.

The spelling of 18852238 in words is "eighteen million, eight hundred fifty-two thousand, two hundred thirty-eight".