1142403244 has 12 divisors (see below), whose sum is σ = 2041742304. Its totient is φ = 559048304.

The previous prime is 1142403221. The next prime is 1142403263. The reversal of 1142403244 is 4423042411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3038119 + ... + 3038494.

It is an arithmetic number, because the mean of its divisors is an integer number (170145192).

Almost surely, 2^1142403244 is an apocalyptic number.

It is an amenable number.

1142403244 is a deficient number, since it is larger than the sum of its proper divisors (899339060).

1142403244 is a wasteful number, since it uses less digits than its factorization.

1142403244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076664 (or 6076662 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1142403244 is about 33799.4562678159. The cubic root of 1142403244 is about 1045.3774859313.

Adding to 1142403244 its reverse (4423042411), we get a palindrome (5565445655).

The spelling of 1142403244 in words is "one billion, one hundred forty-two million, four hundred three thousand, two hundred forty-four".