42440332232407 has 2 divisors, whose sum is σ = 42440332232408. Its totient is φ = 42440332232406.

The previous prime is 42440332232387. The next prime is 42440332232443. The reversal of 42440332232407 is 70423223304424.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42440332232407 is a prime.

It is a super-2 number, since 2×42440332232407² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42440332232407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42440332232107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21220166116203 + 21220166116204.

It is an arithmetic number, because the mean of its divisors is an integer number (21220166116204).

Almost surely, 2^{42440332232407} is an apocalyptic number.

42440332232407 is a deficient number, since it is larger than the sum of its proper divisors (1).

42440332232407 is an equidigital number, since it uses as much as digits as its factorization.

42440332232407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 40.

The spelling of 42440332232407 in words is "forty-two trillion, four hundred forty billion, three hundred thirty-two million, two hundred thirty-two thousand, four hundred seven".