2243220240 has 80 divisors (see below), whose sum is σ = 6959304576. Its totient is φ = 597734400.

The previous prime is 2243220229. The next prime is 2243220241. The reversal of 2243220240 is 420223422.

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

It is not an unprimeable number, because it can be changed into a prime (2243220241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410325 + ... + 415755.

Almost surely, 2^2243220240 is an apocalyptic number.

2243220240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2243220240 is an abundant number, since it is smaller than the sum of its proper divisors (4716084336).

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

2243220240 is a wasteful number, since it uses less digits than its factorization.

2243220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7168 (or 7162 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 2243220240 is about 47362.6460409467. The cubic root of 2243220240 is about 1309.0532249604.

Adding to 2243220240 its reverse (420223422), we get a palindrome (2663443662).

The spelling of 2243220240 in words is "two billion, two hundred forty-three million, two hundred twenty thousand, two hundred forty".