440231304231 has 12 divisors (see below), whose sum is σ = 636736395360. Its totient is φ = 293096736000.

The previous prime is 440231304221. The next prime is 440231304259. The reversal of 440231304231 is 132403132044.

440231304231 is a `hidden beast` number, since 4 + 4 + 0 + 231 + 3 + 0 + 423 + 1 = 666.

It is not a de Polignac number, because 440231304231 - 2³⁰ = 439157562407 is a prime.

It is a super-2 number, since 2×440231304231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440231304195 and 440231304204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440231304221) 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 11 ways as a sum of consecutive naturals, for example, 32559546 + ... + 32573063.

It is an arithmetic number, because the mean of its divisors is an integer number (53061366280).

Almost surely, 2^440231304231 is an apocalyptic number.

440231304231 is a deficient number, since it is larger than the sum of its proper divisors (196505091129).

440231304231 is a wasteful number, since it uses less digits than its factorization.

440231304231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65133366 (or 65133363 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 440231304231 its reverse (132403132044), we get a palindrome (572634436275).

The spelling of 440231304231 in words is "four hundred forty billion, two hundred thirty-one million, three hundred four thousand, two hundred thirty-one".