440423132287 has 2 divisors, whose sum is σ = 440423132288. Its totient is φ = 440423132286.

The previous prime is 440423132257. The next prime is 440423132399. The reversal of 440423132287 is 782231324044.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440423132287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440423132257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220211566143 + 220211566144.

It is an arithmetic number, because the mean of its divisors is an integer number (220211566144).

Almost surely, 2^440423132287 is an apocalyptic number.

440423132287 is a deficient number, since it is larger than the sum of its proper divisors (1).

440423132287 is an equidigital number, since it uses as much as digits as its factorization.

440423132287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 40.

The spelling of 440423132287 in words is "four hundred forty billion, four hundred twenty-three million, one hundred thirty-two thousand, two hundred eighty-seven".