18059712 has 112 divisors (see below), whose sum is σ = 55302912. Its totient is φ = 5140480.

The previous prime is 18059707. The next prime is 18059719. The reversal of 18059712 is 21795081.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18059719) 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, 35653 + ... + 36155.

It is an arithmetic number, because the mean of its divisors is an integer number (493776).

Almost surely, 2^18059712 is an apocalyptic number.

18059712 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 18059712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27651456).

18059712 is an abundant number, since it is smaller than the sum of its proper divisors (37243200).

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

18059712 is a wasteful number, since it uses less digits than its factorization.

18059712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 18059712 is about 4249.6719873421. The cubic root of 18059712 is about 262.3636153200.

The spelling of 18059712 in words is "eighteen million, fifty-nine thousand, seven hundred twelve".