422338649 has 2 divisors, whose sum is σ = 422338650. Its totient is φ = 422338648.

The previous prime is 422338643. The next prime is 422338681. The reversal of 422338649 is 946833224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261048649 + 161290000 = 16157^2 + 12700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422338649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422338643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211169324 + 211169325.

It is an arithmetic number, because the mean of its divisors is an integer number (211169325).

Almost surely, 2^422338649 is an apocalyptic number.

It is an amenable number.

422338649 is a deficient number, since it is larger than the sum of its proper divisors (1).

422338649 is an equidigital number, since it uses as much as digits as its factorization.

422338649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 41.

The square root of 422338649 is about 20550.8795188916. The cubic root of 422338649 is about 750.2746543707.

The spelling of 422338649 in words is "four hundred twenty-two million, three hundred thirty-eight thousand, six hundred forty-nine".