1142530444 has 24 divisors (see below), whose sum is σ = 2185904448. Its totient is φ = 518210640.

The previous prime is 1142530421. The next prime is 1142530447. The reversal of 1142530444 is 4440352411.

It is not an unprimeable number, because it can be changed into a prime (1142530447) 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 7 ways as a sum of consecutive naturals, for example, 7254 + ... + 48349.

It is an arithmetic number, because the mean of its divisors is an integer number (91079352).

Almost surely, 2^1142530444 is an apocalyptic number.

It is an amenable number.

1142530444 is a deficient number, since it is larger than the sum of its proper divisors (1043374004).

1142530444 is a wasteful number, since it uses less digits than its factorization.

1142530444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56085 (or 56083 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1142530444 is about 33801.3379025150. The cubic root of 1142530444 is about 1045.4162834056.

Adding to 1142530444 its reverse (4440352411), we get a palindrome (5582882855).

The spelling of 1142530444 in words is "one billion, one hundred forty-two million, five hundred thirty thousand, four hundred forty-four".