2218746 has 8 divisors (see below), whose sum is σ = 4437504. Its totient is φ = 739580.

The previous prime is 2218709. The next prime is 2218751. The reversal of 2218746 is 6478122.

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

2218746 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184890 + ... + 184901.

It is an arithmetic number, because the mean of its divisors is an integer number (554688).

2^2218746 is an apocalyptic number.

2218746 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.

2218746 is a wasteful number, since it uses less digits than its factorization.

2218746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369796.

The product of its digits is 5376, while the sum is 30.

The square root of 2218746 is about 1489.5455682858. The cubic root of 2218746 is about 130.4275077778.

The spelling of 2218746 in words is "two million, two hundred eighteen thousand, seven hundred forty-six".