42422669 has 2 divisors, whose sum is σ = 42422670. Its totient is φ = 42422668.

The previous prime is 42422641. The next prime is 42422693. The reversal of 42422669 is 96622424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34070569 + 8352100 = 5837^2 + 2890^2 .

It is a cyclic number.

It is not a de Polignac number, because 42422669 - 2²⁰ = 41374093 is a prime.

It is a super-2 number, since 2×42422669² = 3599365690167122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42482669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21211334 + 21211335.

It is an arithmetic number, because the mean of its divisors is an integer number (21211335).

Almost surely, 2^42422669 is an apocalyptic number.

It is an amenable number.

42422669 is a deficient number, since it is larger than the sum of its proper divisors (1).

42422669 is an equidigital number, since it uses as much as digits as its factorization.

42422669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 35.

The square root of 42422669 is about 6513.2686878402. The cubic root of 42422669 is about 348.7648133720.

The spelling of 42422669 in words is "forty-two million, four hundred twenty-two thousand, six hundred sixty-nine".