142344728 has 24 divisors (see below), whose sum is σ = 270412380. Its totient is φ = 70246800.

The previous prime is 142344721. The next prime is 142344733. The reversal of 142344728 is 827443241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142344721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48503 + ... + 51353.

Almost surely, 2^142344728 is an apocalyptic number.

It is an amenable number.

142344728 is a deficient number, since it is larger than the sum of its proper divisors (128067652).

142344728 is an equidigital number, since it uses as much as digits as its factorization.

142344728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015 (or 2932 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 142344728 is about 11930.8309853086. The cubic root of 142344728 is about 522.1321822398.

Adding to 142344728 its reverse (827443241), we get a palindrome (969787969).

The spelling of 142344728 in words is "one hundred forty-two million, three hundred forty-four thousand, seven hundred twenty-eight".