18849022 has 8 divisors (see below), whose sum is σ = 29936736. Its totient is φ = 8870112.

The previous prime is 18849011. The next prime is 18849031. The reversal of 18849022 is 22094881.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 554383 = 18849022 / (1 + 8 + 8 + 4 + 9 + 0 + 2 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277158 + ... + 277225.

It is an arithmetic number, because the mean of its divisors is an integer number (3742092).

Almost surely, 2^18849022 is an apocalyptic number.

18849022 is a deficient number, since it is larger than the sum of its proper divisors (11087714).

18849022 is a wasteful number, since it uses less digits than its factorization.

18849022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554402.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 18849022 is about 4341.5460379915. The cubic root of 18849022 is about 266.1314950890.

The spelling of 18849022 in words is "eighteen million, eight hundred forty-nine thousand, twenty-two".