18514412 has 36 divisors (see below), whose sum is σ = 38561040. Its totient is φ = 7610400.

The previous prime is 18514399. The next prime is 18514423. The reversal of 18514412 is 21441581.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122537 + ... + 122687.

It is an arithmetic number, because the mean of its divisors is an integer number (1071140).

Almost surely, 2^18514412 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 18514412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19280520).

18514412 is an abundant number, since it is smaller than the sum of its proper divisors (20046628).

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

18514412 is a wasteful number, since it uses less digits than its factorization.

18514412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 189 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 18514412 is about 4302.8376683301. The cubic root of 18514412 is about 264.5472844735.

Adding to 18514412 its reverse (21441581), we get a palindrome (39955993).

The spelling of 18514412 in words is "eighteen million, five hundred fourteen thousand, four hundred twelve".