18852242 has 8 divisors (see below), whose sum is σ = 28528956. Its totient is φ = 9342592.

The previous prime is 18852221. The next prime is 18852271. The reversal of 18852242 is 24225881.

It can be written as a sum of positive squares in 2 ways, for example, as 13039321 + 5812921 = 3611^2 + 2411^2 .

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 = 18852199 and 18852208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41483 + ... + 41934.

Almost surely, 2^18852242 is an apocalyptic number.

18852242 is a deficient number, since it is larger than the sum of its proper divisors (9676714).

18852242 is a wasteful number, since it uses less digits than its factorization.

18852242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83532.

The product of its digits is 10240, while the sum is 32.

The square root of 18852242 is about 4341.9168577945. The cubic root of 18852242 is about 266.1466487420.

The spelling of 18852242 in words is "eighteen million, eight hundred fifty-two thousand, two hundred forty-two".