4405218 has 8 divisors (see below), whose sum is σ = 8810448. Its totient is φ = 1468404.

The previous prime is 4405217. The next prime is 4405231. The reversal of 4405218 is 8125044.

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

4405218 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4405217) 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, 367096 + ... + 367107.

It is an arithmetic number, because the mean of its divisors is an integer number (1101306).

Almost surely, 2^4405218 is an apocalyptic number.

4405218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4405218 is a wasteful number, since it uses less digits than its factorization.

4405218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734208.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 4405218 is about 2098.8611197504. The cubic root of 4405218 is about 163.9290045670.

The spelling of 4405218 in words is "four million, four hundred five thousand, two hundred eighteen".