142404334 has 4 divisors (see below), whose sum is σ = 213606504. Its totient is φ = 71202166.

The previous prime is 142404331. The next prime is 142404341. The reversal of 142404334 is 433404241.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 142404299 and 142404308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142404331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35601082 + ... + 35601085.

It is an arithmetic number, because the mean of its divisors is an integer number (53401626).

Almost surely, 2^142404334 is an apocalyptic number.

142404334 is a deficient number, since it is larger than the sum of its proper divisors (71202170).

142404334 is an equidigital number, since it uses as much as digits as its factorization.

142404334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71202169.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 142404334 is about 11933.3287057719. The cubic root of 142404334 is about 522.2050519747.

Adding to 142404334 its reverse (433404241), we get a palindrome (575808575).

The spelling of 142404334 in words is "one hundred forty-two million, four hundred four thousand, three hundred thirty-four".