442270669 has 2 divisors, whose sum is σ = 442270670. Its totient is φ = 442270668.

The previous prime is 442270663. The next prime is 442270681. The reversal of 442270669 is 966072244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374422500 + 67848169 = 19350^2 + 8237^2 .

It is a cyclic number.

It is not a de Polignac number, because 442270669 - 2¹³ = 442262477 is a prime.

It is a super-2 number, since 2×442270669² = 391206689315415122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442270663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221135334 + 221135335.

It is an arithmetic number, because the mean of its divisors is an integer number (221135335).

Almost surely, 2^442270669 is an apocalyptic number.

It is an amenable number.

442270669 is a deficient number, since it is larger than the sum of its proper divisors (1).

442270669 is an equidigital number, since it uses as much as digits as its factorization.

442270669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 442270669 is about 21030.2322621506. The cubic root of 442270669 is about 761.8966185643.

The spelling of 442270669 in words is "four hundred forty-two million, two hundred seventy thousand, six hundred sixty-nine".