3557218 has 32 divisors (see below), whose sum is σ = 6589440. Its totient is φ = 1406160.

The previous prime is 3557207. The next prime is 3557243. The reversal of 3557218 is 8127553.

3557218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 3557218.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11283 + ... + 11593.

It is an arithmetic number, because the mean of its divisors is an integer number (205920).

Almost surely, 2^3557218 is an apocalyptic number.

3557218 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3557218 is a deficient number, since it is larger than the sum of its proper divisors (3032222).

3557218 is a wasteful number, since it uses less digits than its factorization.

3557218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its digits is 8400, while the sum is 31.

The square root of 3557218 is about 1886.0588538007. The cubic root of 3557218 is about 152.6523497652.

The spelling of 3557218 in words is "three million, five hundred fifty-seven thousand, two hundred eighteen".