2206103440 has 80 divisors (see below), whose sum is σ = 5246092800. Its totient is φ = 862557696.

The previous prime is 2206103381. The next prime is 2206103461. The reversal of 2206103440 is 443016022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649266 + ... + 652654.

It is an arithmetic number, because the mean of its divisors is an integer number (65576160).

Almost surely, 2^2206103440 is an apocalyptic number.

2206103440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2206103440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2623046400).

2206103440 is an abundant number, since it is smaller than the sum of its proper divisors (3039989360).

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

2206103440 is a wasteful number, since it uses less digits than its factorization.

2206103440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584 (or 3578 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2206103440 is about 46969.1754238884. The cubic root of 2206103440 is about 1301.7930759884.

Adding to 2206103440 its reverse (443016022), we get a palindrome (2649119462).

The spelling of 2206103440 in words is "two billion, two hundred six million, one hundred three thousand, four hundred forty".