4400218 has 8 divisors (see below), whose sum is σ = 6611220. Its totient is φ = 2196480.

The previous prime is 4400213. The next prime is 4400261. The reversal of 4400218 is 8120044.

It can be written as a sum of positive squares in 2 ways, for example, as 4397409 + 2809 = 2097^2 + 53^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 4400195 and 4400204.

It is not an unprimeable number, because it can be changed into a prime (4400213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108 + ... + 2968.

Almost surely, 2^4400218 is an apocalyptic number.

4400218 is a deficient number, since it is larger than the sum of its proper divisors (2211002).

4400218 is a wasteful number, since it uses less digits than its factorization.

4400218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 4400218 is about 2097.6696594078. The cubic root of 4400218 is about 163.8669603184.

The spelling of 4400218 in words is "four million, four hundred thousand, two hundred eighteen".