18450560 has 64 divisors (see below), whose sum is σ = 44651520. Its totient is φ = 7289856.

The previous prime is 18450547. The next prime is 18450581. The reversal of 18450560 is 6505481.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 81167 + ... + 81393.

It is an arithmetic number, because the mean of its divisors is an integer number (697680).

Almost surely, 2^18450560 is an apocalyptic number.

18450560 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 18450560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22325760).

18450560 is an abundant number, since it is smaller than the sum of its proper divisors (26200960).

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

18450560 is a wasteful number, since it uses less digits than its factorization.

18450560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 18450560 is about 4295.4115053159. The cubic root of 18450560 is about 264.2428130300.

The spelling of 18450560 in words is "eighteen million, four hundred fifty thousand, five hundred sixty".