2220336 has 60 divisors (see below), whose sum is σ = 6586632. Its totient is φ = 695808.

The previous prime is 2220331. The next prime is 2220349. The reversal of 2220336 is 6330222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2220331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1995 + ... + 2901.

2^2220336 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 2220336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3293316).

2220336 is an abundant number, since it is smaller than the sum of its proper divisors (4366296).

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

2220336 is a wasteful number, since it uses less digits than its factorization.

2220336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2220336 is about 1490.0791925264. The cubic root of 2220336 is about 130.4586560360.

Adding to 2220336 its reverse (6330222), we get a palindrome (8550558).

It can be divided in two parts, 2220 and 336, that added together give a triangular number (2556 = T₇₁).

The spelling of 2220336 in words is "two million, two hundred twenty thousand, three hundred thirty-six".