18798274 has 8 divisors (see below), whose sum is σ = 30760848. Its totient is φ = 8544660.

The previous prime is 18798271. The next prime is 18798289. The reversal of 18798274 is 47289781.

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

It is not an unprimeable number, because it can be changed into a prime (18798271) by changing a digit.

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, 427212 + ... + 427255.

It is an arithmetic number, because the mean of its divisors is an integer number (3845106).

Almost surely, 2^18798274 is an apocalyptic number.

18798274 is a deficient number, since it is larger than the sum of its proper divisors (11962574).

18798274 is a wasteful number, since it uses less digits than its factorization.

18798274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854480.

The product of its digits is 225792, while the sum is 46.

The square root of 18798274 is about 4335.6976370591. The cubic root of 18798274 is about 265.8924414858.

It can be divided in two parts, 1879 and 8274, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 18798274 in words is "eighteen million, seven hundred ninety-eight thousand, two hundred seventy-four".