1142440556 has 12 divisors (see below), whose sum is σ = 2007237960. Its totient is φ = 568944000.

The previous prime is 1142440549. The next prime is 1142440573. The reversal of 1142440556 is 6550442411.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567941 + ... + 569948.

It is an arithmetic number, because the mean of its divisors is an integer number (167269830).

Almost surely, 2^1142440556 is an apocalyptic number.

It is an amenable number.

1142440556 is a deficient number, since it is larger than the sum of its proper divisors (864797404).

1142440556 is a wasteful number, since it uses less digits than its factorization.

1142440556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138144 (or 1138142 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 1142440556 is about 33800.0082248511. The cubic root of 1142440556 is about 1045.3888668222.

Adding to 1142440556 its reverse (6550442411), we get a palindrome (7692882967).

The spelling of 1142440556 in words is "one billion, one hundred forty-two million, four hundred forty thousand, five hundred fifty-six".