2243142340 has 12 divisors (see below), whose sum is σ = 4710598956. Its totient is φ = 897256928.

The previous prime is 2243142331. The next prime is 2243142347. The reversal of 2243142340 is 432413422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1013658244 + 1229484096 = 31838^2 + 35064^2 .

It is not an unprimeable number, because it can be changed into a prime (2243142347) 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, 56078539 + ... + 56078578.

It is an arithmetic number, because the mean of its divisors is an integer number (392549913).

Almost surely, 2^2243142340 is an apocalyptic number.

2243142340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2243142340 is an abundant number, since it is smaller than the sum of its proper divisors (2467456616).

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

2243142340 is a wasteful number, since it uses less digits than its factorization.

2243142340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112157126 (or 112157124 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2243142340 is about 47361.8236557673. The cubic root of 2243142340 is about 1309.0380716814.

Adding to 2243142340 its reverse (432413422), we get a palindrome (2675555762).

The spelling of 2243142340 in words is "two billion, two hundred forty-three million, one hundred forty-two thousand, three hundred forty".