142444444434 has 32 divisors (see below), whose sum is σ = 287750698560. Its totient is φ = 47004648000.

The previous prime is 142444444433. The next prime is 142444444501. The reversal of 142444444434 is 434444444241.

It is a super-2 number, since 2×142444444434² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142444444433) 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 in 15 ways as a sum of consecutive naturals, for example, 6006352 + ... + 6030020.

It is an arithmetic number, because the mean of its divisors is an integer number (8992209330).

Almost surely, 2^142444444434 is an apocalyptic number.

142444444434 is an abundant number, since it is smaller than the sum of its proper divisors (145306254126).

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

142444444434 is a wasteful number, since it uses less digits than its factorization.

142444444434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33706.

The product of its digits is 1572864, while the sum is 42.

Adding to 142444444434 its reverse (434444444241), we get a palindrome (576888888675).

The spelling of 142444444434 in words is "one hundred forty-two billion, four hundred forty-four million, four hundred forty-four thousand, four hundred thirty-four".