4909218 has 16 divisors (see below), whose sum is σ = 9943680. Its totient is φ = 1615536.

The previous prime is 4909199. The next prime is 4909241. The reversal of 4909218 is 8129094.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4705 + ... + 5652.

It is an arithmetic number, because the mean of its divisors is an integer number (621480).

Almost surely, 2^4909218 is an apocalyptic number.

4909218 is an abundant number, since it is smaller than the sum of its proper divisors (5034462).

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

4909218 is a wasteful number, since it uses less digits than its factorization.

4909218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10441.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 4909218 is about 2215.6755177598. The cubic root of 4909218 is about 169.9563671180.

The spelling of 4909218 in words is "four million, nine hundred nine thousand, two hundred eighteen".