4401218 has 4 divisors (see below), whose sum is σ = 6601830. Its totient is φ = 2200608.

The previous prime is 4401209. The next prime is 4401233. The reversal of 4401218 is 8121044.

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., 4068289 + 332929 = 2017^2 + 577^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4401218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100303 + ... + 1100306.

Almost surely, 2^4401218 is an apocalyptic number.

4401218 is a deficient number, since it is larger than the sum of its proper divisors (2200612).

4401218 is a wasteful number, since it uses less digits than its factorization.

4401218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200611.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 4401218 is about 2097.9080056094. The cubic root of 4401218 is about 163.8793729268.

The spelling of 4401218 in words is "four million, four hundred one thousand, two hundred eighteen".