18124916 has 12 divisors (see below), whose sum is σ = 31772580. Its totient is φ = 9047040.

The previous prime is 18124903. The next prime is 18124919. The reversal of 18124916 is 61942181.

It can be written as a sum of positive squares in 2 ways, for example, as 11874916 + 6250000 = 3446^2 + 2500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18124919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971 + ... + 6098.

It is an arithmetic number, because the mean of its divisors is an integer number (2647715).

Almost surely, 2^18124916 is an apocalyptic number.

It is an amenable number.

18124916 is a deficient number, since it is larger than the sum of its proper divisors (13647664).

18124916 is a wasteful number, since it uses less digits than its factorization.

18124916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7714 (or 7712 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 18124916 is about 4257.3367261705. The cubic root of 18124916 is about 262.6789878296.

The spelling of 18124916 in words is "eighteen million, one hundred twenty-four thousand, nine hundred sixteen".