18007260 has 96 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 4542720.

The previous prime is 18007259. The next prime is 18007273. The reversal of 18007260 is 6270081.

It is a super-2 number, since 2×18007260² = 648522825415200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18007260.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 137395 + ... + 137525.

It is an arithmetic number, because the mean of its divisors is an integer number (554400).

Almost surely, 2^18007260 is an apocalyptic number.

18007260 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 18007260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26611200).

18007260 is an abundant number, since it is smaller than the sum of its proper divisors (35215140).

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

18007260 is a wasteful number, since it uses less digits than its factorization.

18007260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 18007260 is about 4243.4962000690. The cubic root of 18007260 is about 262.1093690970.

The spelling of 18007260 in words is "eighteen million, seven thousand, two hundred sixty".