142644044 has 24 divisors (see below), whose sum is σ = 254221968. Its totient is φ = 70018560.

The previous prime is 142644037. The next prime is 142644079. The reversal of 142644044 is 440446241.

142644044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 142643998 and 142644016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69359 + ... + 71385.

It is an arithmetic number, because the mean of its divisors is an integer number (10592582).

Almost surely, 2^142644044 is an apocalyptic number.

It is an amenable number.

142644044 is a deficient number, since it is larger than the sum of its proper divisors (111577924).

142644044 is a wasteful number, since it uses less digits than its factorization.

142644044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 142644044 is about 11943.3682016423. The cubic root of 142644044 is about 522.4978979334.

The spelling of 142644044 in words is "one hundred forty-two million, six hundred forty-four thousand, forty-four".