18025480 has 64 divisors (see below), whose sum is σ = 44945280. Its totient is φ = 6451200.

The previous prime is 18025463. The next prime is 18025493. The reversal of 18025480 is 8452081.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 30952 + ... + 31528.

It is an arithmetic number, because the mean of its divisors is an integer number (702270).

Almost surely, 2^18025480 is an apocalyptic number.

18025480 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 18025480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22472640).

18025480 is an abundant number, since it is smaller than the sum of its proper divisors (26919800).

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

18025480 is a wasteful number, since it uses less digits than its factorization.

18025480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 18025480 is about 4245.6424719941. The cubic root of 18025480 is about 262.1977412855.

The spelling of 18025480 in words is "eighteen million, twenty-five thousand, four hundred eighty".