442426624229 has 2 divisors, whose sum is σ = 442426624230. Its totient is φ = 442426624228.

The previous prime is 442426624201. The next prime is 442426624249. The reversal of 442426624229 is 922426624244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 435666002500 + 6760621729 = 660050^2 + 82223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442426624229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442426624249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221213312114 + 221213312115.

It is an arithmetic number, because the mean of its divisors is an integer number (221213312115).

Almost surely, 2^442426624229 is an apocalyptic number.

It is an amenable number.

442426624229 is a deficient number, since it is larger than the sum of its proper divisors (1).

442426624229 is an equidigital number, since it uses as much as digits as its factorization.

442426624229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 47.

The spelling of 442426624229 in words is "four hundred forty-two billion, four hundred twenty-six million, six hundred twenty-four thousand, two hundred twenty-nine".