440042340231 has 128 divisors (see below), whose sum is σ = 768918528000.
Its totient is φ = 246137149440.
The previous prime is 440042340193. The next prime is 440042340233. The reversal of 440042340231 is 132043240044.
Adding to 440042340231 its reverse (132043240044), we get a palindrome (572085580275).
It is a happy number.
440042340231 is a `hidden beast` number, since 4 + 4 + 0 + 0 + 423 + 4 + 0 + 231 = 666.
It is not a de Polignac number, because 440042340231 - 26 = 440042340167 is a prime.
It is a super-2 number, since 2×4400423402312 (a number of 24 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 440042340195 and 440042340204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (440042340233) by changing a digit.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 101180245 + ... + 101184593.
It is an arithmetic number, because the mean of its divisors is an integer number (6007176000).
Almost surely, 2440042340231 is an apocalyptic number.
440042340231 is a deficient number, since it is larger than the sum of its proper divisors (328876187769).
440042340231 is a wasteful number, since it uses less digits than its factorization.
440042340231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4966 (or 4960 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 27.
The spelling of 440042340231 in words is "four hundred forty billion, forty-two million, three hundred forty thousand, two hundred thirty-one".