422739019 has 2 divisors, whose sum is σ = 422739020. Its totient is φ = 422739018.

The previous prime is 422738993. The next prime is 422739029. The reversal of 422739019 is 910937224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422739019 - 2¹³ = 422730827 is a prime.

It is a super-2 number, since 2×422739019² = 357416556370164722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422739029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211369509 + 211369510.

It is an arithmetic number, because the mean of its divisors is an integer number (211369510).

Almost surely, 2^422739019 is an apocalyptic number.

422739019 is a deficient number, since it is larger than the sum of its proper divisors (1).

422739019 is an equidigital number, since it uses as much as digits as its factorization.

422739019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 422739019 is about 20560.6181570497. The cubic root of 422739019 is about 750.5116621157.

The spelling of 422739019 in words is "four hundred twenty-two million, seven hundred thirty-nine thousand, nineteen".