18068480 has 44 divisors (see below), whose sum is σ = 43355460. Its totient is φ = 7225344.

The previous prime is 18068473. The next prime is 18068483. The reversal of 18068480 is 8486081.

It can be written as a sum of positive squares in 2 ways, for example, as 3810304 + 14258176 = 1952^2 + 3776^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18068480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18068483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3356 + ... + 6884.

Almost surely, 2^18068480 is an apocalyptic number.

18068480 is a gapful number since it is divisible by the number (10) 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 18068480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21677730).

18068480 is an abundant number, since it is smaller than the sum of its proper divisors (25286980).

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

18068480 is an equidigital number, since it uses as much as digits as its factorization.

18068480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554 (or 3536 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 18068480 is about 4250.7034711916. The cubic root of 18068480 is about 262.4060676765.

The spelling of 18068480 in words is "eighteen million, sixty-eight thousand, four hundred eighty".