444132320023 has 32 divisors (see below), whose sum is σ = 542195896320. Its totient is φ = 355586112000.

The previous prime is 444132319993. The next prime is 444132320041. The reversal of 444132320023 is 320023231444.

It is a de Polignac number, because none of the positive numbers 2^k-444132320023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444132319973 and 444132320000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444132320053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23217903 + ... + 23237023.

It is an arithmetic number, because the mean of its divisors is an integer number (16943621760).

Almost surely, 2^444132320023 is an apocalyptic number.

444132320023 is a deficient number, since it is larger than the sum of its proper divisors (98063576297).

444132320023 is a wasteful number, since it uses less digits than its factorization.

444132320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22879.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 444132320023 its reverse (320023231444), we get a palindrome (764155551467).

The spelling of 444132320023 in words is "four hundred forty-four billion, one hundred thirty-two million, three hundred twenty thousand, twenty-three".