1443240142 has 8 divisors (see below), whose sum is σ = 2178142056. Its totient is φ = 717192792.

The previous prime is 1443240131. The next prime is 1443240163. The reversal of 1443240142 is 2410423441.

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 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, 2213233 + ... + 2213884.

It is an arithmetic number, because the mean of its divisors is an integer number (272267757).

Almost surely, 2^1443240142 is an apocalyptic number.

1443240142 is a deficient number, since it is larger than the sum of its proper divisors (734901914).

1443240142 is a wasteful number, since it uses less digits than its factorization.

1443240142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427282.

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

The square root of 1443240142 is about 37990.0005527770. Note that the first 3 decimals coincide. The cubic root of 1443240142 is about 1130.0895697398.

Adding to 1443240142 its reverse (2410423441), we get a palindrome (3853663583).

The spelling of 1443240142 in words is "one billion, four hundred forty-three million, two hundred forty thousand, one hundred forty-two".