1143422442 has 36 divisors (see below), whose sum is σ = 2507895234. Its totient is φ = 376507920.

The previous prime is 1143422407. The next prime is 1143422443. The reversal of 1143422442 is 2442243411.

1143422442 is a `hidden beast` number, since 1 + 1 + 434 + 224 + 4 + 2 = 666.

1143422442 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 736633881 + 406788561 = 27141^2 + 20169^2 .

It is not an unprimeable number, because it can be changed into a prime (1143422443) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 119392 + ... + 128612.

Almost surely, 2^1143422442 is an apocalyptic number.

1143422442 is an abundant number, since it is smaller than the sum of its proper divisors (1364472792).

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

1143422442 is an equidigital number, since it uses as much as digits as its factorization.

1143422442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9395 (or 9309 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 1143422442 is about 33814.5300425719. The cubic root of 1143422442 is about 1045.6882722666.

Adding to 1143422442 its reverse (2442243411), we get a palindrome (3585665853).

The spelling of 1143422442 in words is "one billion, one hundred forty-three million, four hundred twenty-two thousand, four hundred forty-two".