18334805 has 4 divisors (see below), whose sum is σ = 22001772. Its totient is φ = 14667840.

The previous prime is 18334793. The next prime is 18334819. The reversal of 18334805 is 50843381.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5958481 + 12376324 = 2441^2 + 3518^2 .

It is not a de Polignac number, because 18334805 - 2⁶ = 18334741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1833476 + ... + 1833485.

It is an arithmetic number, because the mean of its divisors is an integer number (5500443).

Almost surely, 2^18334805 is an apocalyptic number.

It is an amenable number.

18334805 is a deficient number, since it is larger than the sum of its proper divisors (3666967).

18334805 is an equidigital number, since it uses as much as digits as its factorization.

18334805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666966.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 18334805 is about 4281.9160430816. The cubic root of 18334805 is about 263.6890517511.

The spelling of 18334805 in words is "eighteen million, three hundred thirty-four thousand, eight hundred five".