4518140 has 36 divisors (see below), whose sum is σ = 10434648. Its totient is φ = 1642080.

The previous prime is 4518133. The next prime is 4518169. The reversal of 4518140 is 418154.

4518140 = T₄₃₁ + T₄₃₂ + ... + T₄₇₄.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1487 + ... + 3353.

Almost surely, 2^4518140 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 4518140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5217324).

4518140 is an abundant number, since it is smaller than the sum of its proper divisors (5916508).

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

4518140 is a wasteful number, since it uses less digits than its factorization.

4518140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 4518140 is about 2125.5916823322. The cubic root of 4518140 is about 165.3179056162.

The spelling of 4518140 in words is "four million, five hundred eighteen thousand, one hundred forty".