440423132249 has 2 divisors, whose sum is σ = 440423132250. Its totient is φ = 440423132248.

The previous prime is 440423132243. The next prime is 440423132257. The reversal of 440423132249 is 942231324044.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368012089600 + 72411042649 = 606640^2 + 269093^2 .

It is a cyclic number.

It is not a de Polignac number, because 440423132249 - 2²⁴ = 440406355033 is a prime.

It is not a weakly prime, because it can be changed into another prime (440423132243) 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 as a sum of consecutive naturals, namely, 220211566124 + 220211566125.

It is an arithmetic number, because the mean of its divisors is an integer number (220211566125).

Almost surely, 2^440423132249 is an apocalyptic number.

It is an amenable number.

440423132249 is a deficient number, since it is larger than the sum of its proper divisors (1).

440423132249 is an equidigital number, since it uses as much as digits as its factorization.

440423132249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 440423132249 in words is "four hundred forty billion, four hundred twenty-three million, one hundred thirty-two thousand, two hundred forty-nine".