422429531 has 2 divisors, whose sum is σ = 422429532. Its totient is φ = 422429530.

The previous prime is 422429509. The next prime is 422429533. The reversal of 422429531 is 135924224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422429531 - 2¹⁰ = 422428507 is a prime.

It is a super-2 number, since 2×422429531² = 356893417321759922, which contains 22 as substring.

Together with 422429533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422429533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211214765 + 211214766.

It is an arithmetic number, because the mean of its divisors is an integer number (211214766).

Almost surely, 2^422429531 is an apocalyptic number.

422429531 is a deficient number, since it is larger than the sum of its proper divisors (1).

422429531 is an equidigital number, since it uses as much as digits as its factorization.

422429531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 422429531 is about 20553.0905461928. The cubic root of 422429531 is about 750.3284670878.

The spelling of 422429531 in words is "four hundred twenty-two million, four hundred twenty-nine thousand, five hundred thirty-one".