18580480 has 88 divisors (see below), whose sum is σ = 47162880. Its totient is φ = 7004160.

The previous prime is 18580427. The next prime is 18580489. The reversal of 18580480 is 8408581.

It is not an unprimeable number, because it can be changed into a prime (18580489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97185 + ... + 97375.

Almost surely, 2^18580480 is an apocalyptic number.

18580480 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 18580480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23581440).

18580480 is an abundant number, since it is smaller than the sum of its proper divisors (28582400).

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

18580480 is a wasteful number, since it uses less digits than its factorization.

18580480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 18580480 is about 4310.5080907011. The cubic root of 18580480 is about 264.8615866707.

The spelling of 18580480 in words is "eighteen million, five hundred eighty thousand, four hundred eighty".