142642336434 has 96 divisors (see below), whose sum is σ = 323053867584. Its totient is φ = 41709064320.

The previous prime is 142642336423. The next prime is 142642336451. The reversal of 142642336434 is 434633246241.

It is a super-2 number, since 2×142642336434² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5322849 + ... + 5349579.

It is an arithmetic number, because the mean of its divisors is an integer number (3365144454).

Almost surely, 2^142642336434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142642336434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161526933792).

142642336434 is an abundant number, since it is smaller than the sum of its proper divisors (180411531150).

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

142642336434 is a wasteful number, since it uses less digits than its factorization.

142642336434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26872 (or 26829 counting only the distinct ones).

The product of its digits is 995328, while the sum is 42.

The spelling of 142642336434 in words is "one hundred forty-two billion, six hundred forty-two million, three hundred thirty-six thousand, four hundred thirty-four".