18074229 has 8 divisors (see below), whose sum is σ = 24136992. Its totient is φ = 12030480.

The previous prime is 18074227. The next prime is 18074249. The reversal of 18074229 is 92247081.

It is a happy number.

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

It is not a de Polignac number, because 18074229 - 2¹ = 18074227 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18074229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18074227) 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 7 ways as a sum of consecutive naturals, for example, 2362 + ... + 6459.

It is an arithmetic number, because the mean of its divisors is an integer number (3017124).

Almost surely, 2^18074229 is an apocalyptic number.

It is an amenable number.

18074229 is a deficient number, since it is larger than the sum of its proper divisors (6062763).

18074229 is an equidigital number, since it uses as much as digits as its factorization.

18074229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 18074229 is about 4251.3796584168. The cubic root of 18074229 is about 262.4338953726.

The spelling of 18074229 in words is "eighteen million, seventy-four thousand, two hundred twenty-nine".