4518556 has 12 divisors (see below), whose sum is σ = 9037168. Its totient is φ = 1936512.

The previous prime is 4518541. The next prime is 4518559. The reversal of 4518556 is 6558154.

It is a happy number.

4518556 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4518559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80661 + ... + 80716.

Almost surely, 2^4518556 is an apocalyptic number.

It is an amenable number.

4518556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4518556 is a wasteful number, since it uses less digits than its factorization.

4518556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161388 (or 161386 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

The square root of 4518556 is about 2125.6895351862. The cubic root of 4518556 is about 165.3229792481.

The spelling of 4518556 in words is "four million, five hundred eighteen thousand, five hundred fifty-six".