4518180 has 60 divisors (see below), whose sum is σ = 14178780. Its totient is φ = 1204416.

The previous prime is 4518169. The next prime is 4518187. The reversal of 4518180 is 818154.

It can be written as a sum of positive squares in 2 ways, for example, as 2232036 + 2286144 = 1494^2 + 1512^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4518187) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 226 + ... + 3014.

It is an arithmetic number, because the mean of its divisors is an integer number (236313).

Almost surely, 2^4518180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4518180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7089390).

4518180 is an abundant number, since it is smaller than the sum of its proper divisors (9660600).

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

4518180 is a wasteful number, since it uses less digits than its factorization.

4518180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810 (or 2799 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 4518180 is about 2125.6010914562. The cubic root of 4518180 is about 165.3183934789.

It can be divided in two parts, 45 and 18180, that added together give a square (18225 = 135²).

The spelling of 4518180 in words is "four million, five hundred eighteen thousand, one hundred eighty".