18846229 has 8 divisors (see below), whose sum is σ = 19363680. Its totient is φ = 18335856.

The previous prime is 18846211. The next prime is 18846239. The reversal of 18846229 is 92264881.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18846229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18846191 and 18846200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18846239) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3867 + ... + 7255.

It is an arithmetic number, because the mean of its divisors is an integer number (2420460).

Almost surely, 2^18846229 is an apocalyptic number.

It is an amenable number.

18846229 is a deficient number, since it is larger than the sum of its proper divisors (517451).

18846229 is an equidigital number, since it uses as much as digits as its factorization.

18846229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539.

The product of its digits is 55296, while the sum is 40.

The square root of 18846229 is about 4341.2243664662. The cubic root of 18846229 is about 266.1183495443.

The spelling of 18846229 in words is "eighteen million, eight hundred forty-six thousand, two hundred twenty-nine".