2218858 has 8 divisors (see below), whose sum is σ = 3503520. Its totient is φ = 1051020.

The previous prime is 2218837. The next prime is 2218861. The reversal of 2218858 is 8588122.

It is a happy number.

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

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, 29158 + ... + 29233.

It is an arithmetic number, because the mean of its divisors is an integer number (437940).

2^2218858 is an apocalyptic number.

2218858 is a deficient number, since it is larger than the sum of its proper divisors (1284662).

2218858 is a wasteful number, since it uses less digits than its factorization.

2218858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58412.

The product of its digits is 10240, while the sum is 34.

The square root of 2218858 is about 1489.5831631702. The cubic root of 2218858 is about 130.4297023561.

The spelling of 2218858 in words is "two million, two hundred eighteen thousand, eight hundred fifty-eight".