2218496 has 40 divisors (see below), whose sum is σ = 5074080. Its totient is φ = 949248.

The previous prime is 2218451. The next prime is 2218519. The reversal of 2218496 is 6948122.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275 + ... + 3893.

It is an arithmetic number, because the mean of its divisors is an integer number (126852).

2^2218496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2218496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2537040).

2218496 is an abundant number, since it is smaller than the sum of its proper divisors (2855584).

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

2218496 is an frugal number, since it uses more digits than its factorization.

2218496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 628 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 2218496 is about 1489.4616477103. The cubic root of 2218496 is about 130.4226088993.

The spelling of 2218496 in words is "two million, two hundred eighteen thousand, four hundred ninety-six".