142243044 has 48 divisors (see below), whose sum is σ = 352524480. Its totient is φ = 44513280.

The previous prime is 142243039. The next prime is 142243051. The reversal of 142243044 is 440342241.

It is a happy number.

142243044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23004 + ... + 28524.

It is an arithmetic number, because the mean of its divisors is an integer number (7344260).

Almost surely, 2^142243044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142243044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176262240).

142243044 is an abundant number, since it is smaller than the sum of its proper divisors (210281436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142243044 is a wasteful number, since it uses less digits than its factorization.

142243044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660 (or 5658 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 142243044 is about 11926.5688276218. The cubic root of 142243044 is about 522.0078241953.

Adding to 142243044 its reverse (440342241), we get a palindrome (582585285).

The spelling of 142243044 in words is "one hundred forty-two million, two hundred forty-three thousand, forty-four".