18289134 has 48 divisors (see below), whose sum is σ = 42541200. Its totient is φ = 5660928.

The previous prime is 18289123. The next prime is 18289151. The reversal of 18289134 is 43198281.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 17622 + ... + 18630.

It is an arithmetic number, because the mean of its divisors is an integer number (886275).

Almost surely, 2^18289134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18289134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21270600).

18289134 is an abundant number, since it is smaller than the sum of its proper divisors (24252066).

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

18289134 is a wasteful number, since it uses less digits than its factorization.

18289134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1086 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 18289134 is about 4276.5797081313. The cubic root of 18289134 is about 263.4699246868.

The spelling of 18289134 in words is "eighteen million, two hundred eighty-nine thousand, one hundred thirty-four".