142424441 has 8 divisors (see below), whose sum is σ = 148789824. Its totient is φ = 136073520.

The previous prime is 142424417. The next prime is 142424449. The reversal of 142424441 is 144424241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142424441 - 2⁶ = 142424377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142424441.

It is not an unprimeable number, because it can be changed into a prime (142424449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19826 + ... + 26036.

It is an arithmetic number, because the mean of its divisors is an integer number (18598728).

Almost surely, 2^142424441 is an apocalyptic number.

It is an amenable number.

142424441 is a deficient number, since it is larger than the sum of its proper divisors (6365383).

142424441 is an equidigital number, since it uses as much as digits as its factorization.

142424441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231.

The product of its digits is 4096, while the sum is 26.

The square root of 142424441 is about 11934.1711484292. The cubic root of 142424441 is about 522.2296286678.

Adding to 142424441 its reverse (144424241), we get a palindrome (286848682).

The spelling of 142424441 in words is "one hundred forty-two million, four hundred twenty-four thousand, four hundred forty-one".