18126612 has 48 divisors (see below), whose sum is σ = 53710720. Its totient is φ = 5178816.

The previous prime is 18126593. The next prime is 18126613. The reversal of 18126612 is 21662181.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18126613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11233 + ... + 12744.

Almost surely, 2^18126612 is an apocalyptic number.

18126612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18126612 is an abundant number, since it is smaller than the sum of its proper divisors (35584108).

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

18126612 is a wasteful number, since it uses less digits than its factorization.

18126612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23997 (or 23989 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 18126612 is about 4257.5359070711. The cubic root of 18126612 is about 262.6871807811.

Adding to 18126612 its reverse (21662181), we get a palindrome (39788793).

The spelling of 18126612 in words is "eighteen million, one hundred twenty-six thousand, six hundred twelve".