2243431142 has 4 divisors (see below), whose sum is σ = 3365146716. Its totient is φ = 1121715570.

The previous prime is 2243431123. The next prime is 2243431147. The reversal of 2243431142 is 2411343422.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243431147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560857784 + ... + 560857787.

It is an arithmetic number, because the mean of its divisors is an integer number (841286679).

Almost surely, 2^2243431142 is an apocalyptic number.

2243431142 is a deficient number, since it is larger than the sum of its proper divisors (1121715574).

2243431142 is a wasteful number, since it uses less digits than its factorization.

2243431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121715573.

The product of its digits is 4608, while the sum is 26.

The square root of 2243431142 is about 47364.8724478384. The cubic root of 2243431142 is about 1309.0942483200.

Adding to 2243431142 its reverse (2411343422), we get a palindrome (4654774564).

The spelling of 2243431142 in words is "two billion, two hundred forty-three million, four hundred thirty-one thousand, one hundred forty-two".