18026712 has 112 divisors (see below), whose sum is σ = 55480680. Its totient is φ = 5443200.

The previous prime is 18026707. The next prime is 18026741. The reversal of 18026712 is 21762081.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 64012 + ... + 64292.

Almost surely, 2^18026712 is an apocalyptic number.

18026712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18026712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27740340).

18026712 is an abundant number, since it is smaller than the sum of its proper divisors (37453968).

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

18026712 is a wasteful number, since it uses less digits than its factorization.

18026712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 18026712 is about 4245.7875594523. The cubic root of 18026712 is about 262.2037146864.

Adding to 18026712 its reverse (21762081), we get a palindrome (39788793).

The spelling of 18026712 in words is "eighteen million, twenty-six thousand, seven hundred twelve".