1142304322 has 4 divisors (see below), whose sum is σ = 1713456486. Its totient is φ = 571152160.

The previous prime is 1142304311. The next prime is 1142304329. The reversal of 1142304322 is 2234032411.

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

It can be written as a sum of positive squares in only one way, i.e., 1092897481 + 49406841 = 33059^2 + 7029^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1142304293 and 1142304302.

It is not an unprimeable number, because it can be changed into a prime (1142304329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285576079 + ... + 285576082.

Almost surely, 2^1142304322 is an apocalyptic number.

1142304322 is a deficient number, since it is larger than the sum of its proper divisors (571152164).

1142304322 is an equidigital number, since it uses as much as digits as its factorization.

1142304322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571152163.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1142304322 is about 33797.9928693998. The cubic root of 1142304322 is about 1045.3473115840.

Adding to 1142304322 its reverse (2234032411), we get a palindrome (3376336733).

The spelling of 1142304322 in words is "one billion, one hundred forty-two million, three hundred four thousand, three hundred twenty-two".