440642394179 has 8 divisors (see below), whose sum is σ = 474598592832. Its totient is φ = 406694856960.

The previous prime is 440642394163. The next prime is 440642394223. The reversal of 440642394179 is 971493246044.

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 440642394179 - 2⁴ = 440642394163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 440642394179.

It is not an unprimeable number, because it can be changed into a prime (440642394079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2059499 + ... + 2263364.

It is an arithmetic number, because the mean of its divisors is an integer number (59324824104).

Almost surely, 2^440642394179 is an apocalyptic number.

440642394179 is a deficient number, since it is larger than the sum of its proper divisors (33956198653).

440642394179 is a wasteful number, since it uses less digits than its factorization.

440642394179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330717.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 440642394179 in words is "four hundred forty billion, six hundred forty-two million, three hundred ninety-four thousand, one hundred seventy-nine".