20132442440439 has 16 divisors (see below), whose sum is σ = 30823400935680. Its totient is φ = 11449730295360.

The previous prime is 20132442440419. The next prime is 20132442440449. The reversal of 20132442440439 is 93404424423102.

It is a happy number.

It is not a de Polignac number, because 20132442440439 - 2¹² = 20132442436343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20132442440439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132442440419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2271767454 + ... + 2271776315.

It is an arithmetic number, because the mean of its divisors is an integer number (1926462558480).

Almost surely, 2^{20132442440439} is an apocalyptic number.

20132442440439 is a deficient number, since it is larger than the sum of its proper divisors (10690958495241).

20132442440439 is a wasteful number, since it uses less digits than its factorization.

20132442440439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4543543990.

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 20132442440439 in words is "twenty trillion, one hundred thirty-two billion, four hundred forty-two million, four hundred forty thousand, four hundred thirty-nine".