440002242431 has 2 divisors, whose sum is σ = 440002242432. Its totient is φ = 440002242430.

The previous prime is 440002242401. The next prime is 440002242443. The reversal of 440002242431 is 134242200044.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 440002242431 - 2⁶ = 440002242367 is a prime.

It is a super-2 number, since 2×440002242431² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 440002242431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440002242401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220001121215 + 220001121216.

It is an arithmetic number, because the mean of its divisors is an integer number (220001121216).

Almost surely, 2^440002242431 is an apocalyptic number.

440002242431 is a deficient number, since it is larger than the sum of its proper divisors (1).

440002242431 is an equidigital number, since it uses as much as digits as its factorization.

440002242431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 440002242431 its reverse (134242200044), we get a palindrome (574244442475).

The spelling of 440002242431 in words is "four hundred forty billion, two million, two hundred forty-two thousand, four hundred thirty-one".