440412213423 has 32 divisors (see below), whose sum is σ = 740355259392. Its totient is φ = 226639353600.

The previous prime is 440412213377. The next prime is 440412213491. The reversal of 440412213423 is 324312214044.

It is not a de Polignac number, because 440412213423 - 2¹⁷ = 440412082351 is a prime.

It is a super-2 number, since 2×440412213423² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440412213823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19662363 + ... + 19684748.

It is an arithmetic number, because the mean of its divisors is an integer number (23136101856).

Almost surely, 2^440412213423 is an apocalyptic number.

440412213423 is a deficient number, since it is larger than the sum of its proper divisors (299943045969).

440412213423 is a wasteful number, since it uses less digits than its factorization.

440412213423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39347175.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 440412213423 its reverse (324312214044), we get a palindrome (764724427467).

The spelling of 440412213423 in words is "four hundred forty billion, four hundred twelve million, two hundred thirteen thousand, four hundred twenty-three".