18032460 has 96 divisors (see below), whose sum is σ = 53706240. Its totient is φ = 4511232.

The previous prime is 18032459. The next prime is 18032471. The reversal of 18032460 is 6423081.

It is a happy number.

It is a super-2 number, since 2×18032460² = 650339227303200, 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 18032460.

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, 100651 + ... + 100829.

It is an arithmetic number, because the mean of its divisors is an integer number (559440).

Almost surely, 2^18032460 is an apocalyptic number.

18032460 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 18032460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26853120).

18032460 is an abundant number, since it is smaller than the sum of its proper divisors (35673780).

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

18032460 is a wasteful number, since it uses less digits than its factorization.

18032460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 18032460 is about 4246.4644117195. The cubic root of 18032460 is about 262.2315804963.

It can be divided in two parts, 180 and 32460, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 18032460 in words is "eighteen million, thirty-two thousand, four hundred sixty".