442240262069 has 2 divisors, whose sum is σ = 442240262070. Its totient is φ = 442240262068.

The previous prime is 442240262059. The next prime is 442240262081. The reversal of 442240262069 is 960262042244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373143831025 + 69096431044 = 610855^2 + 262862^2 .

It is a cyclic number.

It is not a de Polignac number, because 442240262069 - 2¹⁶ = 442240196533 is a prime.

It is a super-2 number, since 2×442240262069² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442240262059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221120131034 + 221120131035.

It is an arithmetic number, because the mean of its divisors is an integer number (221120131035).

Almost surely, 2^442240262069 is an apocalyptic number.

It is an amenable number.

442240262069 is a deficient number, since it is larger than the sum of its proper divisors (1).

442240262069 is an equidigital number, since it uses as much as digits as its factorization.

442240262069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 442240262069 in words is "four hundred forty-two billion, two hundred forty million, two hundred sixty-two thousand, sixty-nine".