18051412 has 24 divisors (see below), whose sum is σ = 33860736. Its totient is φ = 8398368.

The previous prime is 18051403. The next prime is 18051413. The reversal of 18051412 is 21415081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18051413) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 753 + ... + 6055.

It is an arithmetic number, because the mean of its divisors is an integer number (1410864).

Almost surely, 2^18051412 is an apocalyptic number.

It is an amenable number.

18051412 is a deficient number, since it is larger than the sum of its proper divisors (15809324).

18051412 is a wasteful number, since it uses less digits than its factorization.

18051412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367 (or 5365 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 18051412 is about 4248.6953291569. The cubic root of 18051412 is about 262.3234162349.

Adding to 18051412 its reverse (21415081), we get a palindrome (39466493).

The spelling of 18051412 in words is "eighteen million, fifty-one thousand, four hundred twelve".