18350229 has 8 divisors (see below), whose sum is σ = 24802432. Its totient is φ = 12065760.

The previous prime is 18350201. The next prime is 18350231. The reversal of 18350229 is 92205381.

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 18350229 - 2⁹ = 18349717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18350196 and 18350205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18350249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41677 + ... + 42114.

It is an arithmetic number, because the mean of its divisors is an integer number (3100304).

Almost surely, 2^18350229 is an apocalyptic number.

It is an amenable number.

18350229 is a deficient number, since it is larger than the sum of its proper divisors (6452203).

18350229 is an equidigital number, since it uses as much as digits as its factorization.

18350229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83867.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 18350229 is about 4283.7167273292. The cubic root of 18350229 is about 263.7629730896.

The spelling of 18350229 in words is "eighteen million, three hundred fifty thousand, two hundred twenty-nine".