2201440 has 24 divisors (see below), whose sum is σ = 5201280. Its totient is φ = 880512.

The previous prime is 2201431. The next prime is 2201443. The reversal of 2201440 is 441022.

It is a self number, because there is not a number n which added to its sum of digits gives 2201440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6720 + ... + 7039.

It is an arithmetic number, because the mean of its divisors is an integer number (216720).

2^2201440 is an apocalyptic number.

2201440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201440 is an abundant number, since it is smaller than the sum of its proper divisors (2999840).

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

2201440 is a wasteful number, since it uses less digits than its factorization.

2201440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13774 (or 13766 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2201440 is about 1483.7250419131. The cubic root of 2201440 is about 130.0875150368.

Adding to 2201440 its reverse (441022), we get a palindrome (2642462).

The spelling of 2201440 in words is "two million, two hundred one thousand, four hundred forty".