1142424443 has 4 divisors (see below), whose sum is σ = 1142610240. Its totient is φ = 1142238648.

The previous prime is 1142424427. The next prime is 1142424449. The reversal of 1142424443 is 3444242411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142424443 - 2⁴ = 1142424427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142424449) 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, 83348 + ... + 96081.

It is an arithmetic number, because the mean of its divisors is an integer number (285652560).

Almost surely, 2^1142424443 is an apocalyptic number.

1142424443 is a deficient number, since it is larger than the sum of its proper divisors (185797).

1142424443 is an equidigital number, since it uses as much as digits as its factorization.

1142424443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185796.

The product of its digits is 12288, while the sum is 29.

The square root of 1142424443 is about 33799.7698660804. The cubic root of 1142424443 is about 1045.3839520720.

Adding to 1142424443 its reverse (3444242411), we get a palindrome (4586666854).

The spelling of 1142424443 in words is "one billion, one hundred forty-two million, four hundred twenty-four thousand, four hundred forty-three".