18834486 has 32 divisors (see below), whose sum is σ = 41413248. Its totient is φ = 5663040.

The previous prime is 18834467. The next prime is 18834509. The reversal of 18834486 is 68443881.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8001 + ... + 10083.

It is an arithmetic number, because the mean of its divisors is an integer number (1294164).

Almost surely, 2^18834486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18834486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20706624).

18834486 is an abundant number, since it is smaller than the sum of its proper divisors (22578762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18834486 is a wasteful number, since it uses less digits than its factorization.

18834486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236.

The product of its digits is 147456, while the sum is 42.

The square root of 18834486 is about 4339.8716570885. The cubic root of 18834486 is about 266.0630656806.

The spelling of 18834486 in words is "eighteen million, eight hundred thirty-four thousand, four hundred eighty-six".