142440546 has 32 divisors (see below), whose sum is σ = 288731520. Its totient is φ = 46842624.

The previous prime is 142440539. The next prime is 142440577. The reversal of 142440546 is 645044241.

It is a happy number.

142440546 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, 282931 + ... + 283433.

It is an arithmetic number, because the mean of its divisors is an integer number (9022860).

Almost surely, 2^142440546 is an apocalyptic number.

142440546 is an abundant number, since it is smaller than the sum of its proper divisors (146290974).

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

142440546 is a wasteful number, since it uses less digits than its factorization.

142440546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 142440546 is about 11934.8458724862. The cubic root of 142440546 is about 522.2493120665.

Adding to 142440546 its reverse (645044241), we get a palindrome (787484787).

The spelling of 142440546 in words is "one hundred forty-two million, four hundred forty thousand, five hundred forty-six".