2243243340 has 144 divisors (see below), whose sum is σ = 7404223008. Its totient is φ = 546435072.

The previous prime is 2243243333. The next prime is 2243243357. The reversal of 2243243340 is 433423422.

2243243340 is a `hidden beast` number, since 2 + 2 + 4 + 324 + 334 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222039 + ... + 231921.

Almost surely, 2^2243243340 is an apocalyptic number.

2243243340 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 2243243340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3702111504).

2243243340 is an abundant number, since it is smaller than the sum of its proper divisors (5160979668).

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

2243243340 is a wasteful number, since it uses less digits than its factorization.

2243243340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008 (or 10003 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 2243243340 is about 47362.8899033832. The cubic root of 2243243340 is about 1309.0577183557.

Adding to 2243243340 its reverse (433423422), we get a palindrome (2676666762).

The spelling of 2243243340 in words is "two billion, two hundred forty-three million, two hundred forty-three thousand, three hundred forty".