18334645 has 8 divisors (see below), whose sum is σ = 25144704. Its totient is φ = 12572304.

The previous prime is 18334643. The next prime is 18334669. The reversal of 18334645 is 54643381.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18334645 - 2¹ = 18334643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18334645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18334643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261889 + ... + 261958.

It is an arithmetic number, because the mean of its divisors is an integer number (3143088).

Almost surely, 2^18334645 is an apocalyptic number.

It is an amenable number.

18334645 is a deficient number, since it is larger than the sum of its proper divisors (6810059).

18334645 is an equidigital number, since it uses as much as digits as its factorization.

18334645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523859.

The product of its digits is 34560, while the sum is 34.

The square root of 18334645 is about 4281.8973598161. The cubic root of 18334645 is about 263.6882847150.

The spelling of 18334645 in words is "eighteen million, three hundred thirty-four thousand, six hundred forty-five".