1244331142 has 8 divisors (see below), whose sum is σ = 1947648816. Its totient is φ = 595114872.

The previous prime is 1244331139. The next prime is 1244331199. The reversal of 1244331142 is 2411334421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 13525293 + ... + 13525384.

It is an arithmetic number, because the mean of its divisors is an integer number (243456102).

Almost surely, 2^1244331142 is an apocalyptic number.

1244331142 is a deficient number, since it is larger than the sum of its proper divisors (703317674).

1244331142 is a wasteful number, since it uses less digits than its factorization.

1244331142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27050702.

The product of its digits is 2304, while the sum is 25.

The square root of 1244331142 is about 35275.0781997716. The cubic root of 1244331142 is about 1075.5864525358.

Adding to 1244331142 its reverse (2411334421), we get a palindrome (3655665563).

The spelling of 1244331142 in words is "one billion, two hundred forty-four million, three hundred thirty-one thousand, one hundred forty-two".