4109218 has 4 divisors (see below), whose sum is σ = 6163830. Its totient is φ = 2054608.

The previous prime is 4109201. The next prime is 4109227. The reversal of 4109218 is 8129014.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3193369 + 915849 = 1787^2 + 957^2 .

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4109192 and 4109201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027303 + ... + 1027306.

Almost surely, 2^4109218 is an apocalyptic number.

4109218 is a deficient number, since it is larger than the sum of its proper divisors (2054612).

4109218 is a wasteful number, since it uses less digits than its factorization.

4109218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054611.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 4109218 is about 2027.1206180196. The cubic root of 4109218 is about 160.1719245710.

The spelling of 4109218 in words is "four million, one hundred nine thousand, two hundred eighteen".