442426624249 has 2 divisors, whose sum is σ = 442426624250. Its totient is φ = 442426624248.

The previous prime is 442426624229. The next prime is 442426624261. The reversal of 442426624249 is 942426624244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430115612224 + 12311012025 = 655832^2 + 110955^2 .

It is a cyclic number.

It is not a de Polignac number, because 442426624249 - 2³¹ = 440279140601 is a prime.

It is not a weakly prime, because it can be changed into another prime (442426624229) 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, 221213312124 + 221213312125.

It is an arithmetic number, because the mean of its divisors is an integer number (221213312125).

Almost surely, 2^442426624249 is an apocalyptic number.

It is an amenable number.

442426624249 is a deficient number, since it is larger than the sum of its proper divisors (1).

442426624249 is an equidigital number, since it uses as much as digits as its factorization.

442426624249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5308416, while the sum is 49.

The spelling of 442426624249 in words is "four hundred forty-two billion, four hundred twenty-six million, six hundred twenty-four thousand, two hundred forty-nine".