4972218 has 8 divisors (see below), whose sum is σ = 9944448. Its totient is φ = 1657404.

The previous prime is 4972207. The next prime is 4972223. The reversal of 4972218 is 8122794.

It is a happy number.

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

4972218 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414346 + ... + 414357.

It is an arithmetic number, because the mean of its divisors is an integer number (1243056).

Almost surely, 2^4972218 is an apocalyptic number.

4972218 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.

4972218 is a wasteful number, since it uses less digits than its factorization.

4972218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828708.

The product of its digits is 8064, while the sum is 33.

The square root of 4972218 is about 2229.8470799586. The cubic root of 4972218 is about 170.6802959154.

The spelling of 4972218 in words is "four million, nine hundred seventy-two thousand, two hundred eighteen".