442514669 has 2 divisors, whose sum is σ = 442514670. Its totient is φ = 442514668.

The previous prime is 442514663. The next prime is 442514689. The reversal of 442514669 is 966415244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408444100 + 34070569 = 20210^2 + 5837^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442514669 is a prime.

It is a super-2 number, since 2×442514669² = 391638464560359122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442514663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221257334 + 221257335.

It is an arithmetic number, because the mean of its divisors is an integer number (221257335).

Almost surely, 2^442514669 is an apocalyptic number.

It is an amenable number.

442514669 is a deficient number, since it is larger than the sum of its proper divisors (1).

442514669 is an equidigital number, since it uses as much as digits as its factorization.

442514669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The square root of 442514669 is about 21036.0326345060. The cubic root of 442514669 is about 762.0367051757.

The spelling of 442514669 in words is "four hundred forty-two million, five hundred fourteen thousand, six hundred sixty-nine".