1142022442 has 24 divisors (see below), whose sum is σ = 1889062308. Its totient is φ = 517408320.

The previous prime is 1142022421. The next prime is 1142022443. The reversal of 1142022442 is 2442202411.

It can be written as a sum of positive squares in 2 ways, for example, as 713904961 + 428117481 = 26719^2 + 20691^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1142022443) 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 in 11 ways as a sum of consecutive naturals, for example, 68208 + ... + 83284.

Almost surely, 2^1142022442 is an apocalyptic number.

1142022442 is a deficient number, since it is larger than the sum of its proper divisors (747039866).

1142022442 is a wasteful number, since it uses less digits than its factorization.

1142022442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15414 (or 15403 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1142022442 is about 33793.8225419972. The cubic root of 1142022442 is about 1045.2613196888.

Adding to 1142022442 its reverse (2442202411), we get a palindrome (3584224853).

The spelling of 1142022442 in words is "one billion, one hundred forty-two million, twenty-two thousand, four hundred forty-two".