18482580 has 72 divisors (see below), whose sum is σ = 58155552. Its totient is φ = 4927392.

The previous prime is 18482549. The next prime is 18482617. The reversal of 18482580 is 8528481.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2959 + ... + 6761.

It is an arithmetic number, because the mean of its divisors is an integer number (807716).

Almost surely, 2^18482580 is an apocalyptic number.

18482580 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 18482580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29077776).

18482580 is an abundant number, since it is smaller than the sum of its proper divisors (39672972).

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

18482580 is a wasteful number, since it uses less digits than its factorization.

18482580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827 (or 3813 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 18482580 is about 4299.1371227259. The cubic root of 18482580 is about 264.3955846353.

The spelling of 18482580 in words is "eighteen million, four hundred eighty-two thousand, five hundred eighty".