42140444343 has 4 divisors (see below), whose sum is σ = 56187259128. Its totient is φ = 28093629560.

The previous prime is 42140444309. The next prime is 42140444369. The reversal of 42140444343 is 34344404124.

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

It is a cyclic number.

It is not a de Polignac number, because 42140444343 - 2⁹ = 42140443831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42140444393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7023407388 + ... + 7023407393.

It is an arithmetic number, because the mean of its divisors is an integer number (14046814782).

Almost surely, 2^42140444343 is an apocalyptic number.

42140444343 is a deficient number, since it is larger than the sum of its proper divisors (14046814785).

42140444343 is a wasteful number, since it uses less digits than its factorization.

42140444343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14046814784.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 42140444343 its reverse (34344404124), we get a palindrome (76484848467).

The spelling of 42140444343 in words is "forty-two billion, one hundred forty million, four hundred forty-four thousand, three hundred forty-three".