2220064 has 96 divisors (see below), whose sum is σ = 5878656. Its totient is φ = 798720.

The previous prime is 2220059. The next prime is 2220073. The reversal of 2220064 is 4600222.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41862 + ... + 41914.

It is an arithmetic number, because the mean of its divisors is an integer number (61236).

2^2220064 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 2220064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2939328).

2220064 is an abundant number, since it is smaller than the sum of its proper divisors (3658592).

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

2220064 is a wasteful number, since it uses less digits than its factorization.

2220064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2220064 is about 1489.9879194141. The cubic root of 2220064 is about 130.4533285835.

Adding to 2220064 its reverse (4600222), we get a palindrome (6820286).

The spelling of 2220064 in words is "two million, two hundred twenty thousand, sixty-four".