18119416 has 48 divisors (see below), whose sum is σ = 41860800. Its totient is φ = 7305984.

The previous prime is 18119411. The next prime is 18119441. The reversal of 18119416 is 61491181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18119411) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5305 + ... + 8023.

It is an arithmetic number, because the mean of its divisors is an integer number (872100).

Almost surely, 2^18119416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18119416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20930400).

18119416 is an abundant number, since it is smaller than the sum of its proper divisors (23741384).

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

18119416 is a wasteful number, since it uses less digits than its factorization.

18119416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756 (or 2745 counting only the distinct ones).

The product of its digits is 1728, while the sum is 31.

The square root of 18119416 is about 4256.6907334219. The cubic root of 18119416 is about 262.6524151899.

The spelling of 18119416 in words is "eighteen million, one hundred nineteen thousand, four hundred sixteen".