42440344142423 has 8 divisors (see below), whose sum is σ = 43822089667200. Its totient is φ = 41059392503040.

The previous prime is 42440344142407. The next prime is 42440344142467. The reversal of 42440344142423 is 32424144304424.

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

It is a cyclic number.

It is not a de Polignac number, because 42440344142423 - 2⁴ = 42440344142407 is a prime.

It is a super-3 number, since 3×42440344142423³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42440344042423) 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, 198362690 + ... + 198576527.

It is an arithmetic number, because the mean of its divisors is an integer number (5477761208400).

Almost surely, 2^{42440344142423} is an apocalyptic number.

42440344142423 is a deficient number, since it is larger than the sum of its proper divisors (1381745524777).

42440344142423 is a wasteful number, since it uses less digits than its factorization.

42440344142423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396942697.

The product of its (nonzero) digits is 1179648, while the sum is 41.

Adding to 42440344142423 its reverse (32424144304424), we get a palindrome (74864488446847).

The spelling of 42440344142423 in words is "forty-two trillion, four hundred forty billion, three hundred forty-four million, one hundred forty-two thousand, four hundred twenty-three".