4418557 has 18 divisors (see below), whose sum is σ = 5330906. Its totient is φ = 3637920.

The previous prime is 4418539. The next prime is 4418563. The reversal of 4418557 is 7558144.

It can be written as a sum of positive squares in 3 ways, for example, as 755161 + 3663396 = 869^2 + 1914^2 .

It is not a de Polignac number, because 4418557 - 2¹⁹ = 3894269 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4418537) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 83343 + ... + 83395.

Almost surely, 2^4418557 is an apocalyptic number.

It is an amenable number.

4418557 is a deficient number, since it is larger than the sum of its proper divisors (912349).

4418557 is a wasteful number, since it uses less digits than its factorization.

4418557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 77 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 4418557 is about 2102.0363935955. The cubic root of 4418557 is about 164.0942968514.

It can be divided in two parts, 441 and 8557, that added together give a palindrome (8998).

The spelling of 4418557 in words is "four million, four hundred eighteen thousand, five hundred fifty-seven".