440244342231 has 8 divisors (see below), whose sum is σ = 600643443840. Its totient is φ = 286670734392.

The previous prime is 440244342229. The next prime is 440244342233. The reversal of 440244342231 is 132243442044.

It is an interprime number because it is at equal distance from previous prime (440244342229) and next prime (440244342233).

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

It is not a de Polignac number, because 440244342231 - 2¹ = 440244342229 is a prime.

It is a super-2 number, since 2×440244342231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440244342192 and 440244342201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440244342233) 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, 1706373291 + ... + 1706373548.

It is an arithmetic number, because the mean of its divisors is an integer number (75080430480).

Almost surely, 2^440244342231 is an apocalyptic number.

440244342231 is a deficient number, since it is larger than the sum of its proper divisors (160399101609).

440244342231 is a wasteful number, since it uses less digits than its factorization.

440244342231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412746885.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 440244342231 its reverse (132243442044), we get a palindrome (572487784275).

The spelling of 440244342231 in words is "four hundred forty billion, two hundred forty-four million, three hundred forty-two thousand, two hundred thirty-one".