142040044 has 24 divisors (see below), whose sum is σ = 252999936. Its totient is φ = 69762000.

The previous prime is 142040033. The next prime is 142040071. The reversal of 142040044 is 440040241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93249 + ... + 94759.

It is an arithmetic number, because the mean of its divisors is an integer number (10541664).

Almost surely, 2^142040044 is an apocalyptic number.

It is an amenable number.

142040044 is a deficient number, since it is larger than the sum of its proper divisors (110959892).

142040044 is a wasteful number, since it uses less digits than its factorization.

142040044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917 (or 1915 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 142040044 is about 11918.0553782905. The cubic root of 142040044 is about 521.7593807909.

Adding to 142040044 its reverse (440040241), we get a palindrome (582080285).

The spelling of 142040044 in words is "one hundred forty-two million, forty thousand, forty-four".