2221040 has 20 divisors (see below), whose sum is σ = 5164104. Its totient is φ = 888384.

The previous prime is 2221031. The next prime is 2221061. The reversal of 2221040 is 401222.

2221040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13802 + ... + 13961.

2^2221040 is an apocalyptic number.

2221040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221040 is an abundant number, since it is smaller than the sum of its proper divisors (2943064).

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

2221040 is a wasteful number, since it uses less digits than its factorization.

2221040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27776 (or 27770 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2221040 is about 1490.3154028594. The cubic root of 2221040 is about 130.4724427164.

Adding to 2221040 its reverse (401222), we get a palindrome (2622262).

The spelling of 2221040 in words is "two million, two hundred twenty-one thousand, forty".