2218838 has 8 divisors (see below), whose sum is σ = 3409560. Its totient is φ = 1082320.

The previous prime is 2218837. The next prime is 2218861. The reversal of 2218838 is 8388122.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218831) 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, 13448 + ... + 13611.

It is an arithmetic number, because the mean of its divisors is an integer number (426195).

2^2218838 is an apocalyptic number.

2218838 is a deficient number, since it is larger than the sum of its proper divisors (1190722).

2218838 is a wasteful number, since it uses less digits than its factorization.

2218838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27102.

The product of its digits is 6144, while the sum is 32.

The square root of 2218838 is about 1489.5764498675. The cubic root of 2218838 is about 130.4293104725.

The spelling of 2218838 in words is "two million, two hundred eighteen thousand, eight hundred thirty-eight".