422530399 has 2 divisors, whose sum is σ = 422530400. Its totient is φ = 422530398.

The previous prime is 422530357. The next prime is 422530421. The reversal of 422530399 is 993035224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422530399 - 2²⁷ = 288312671 is a prime.

It is a super-3 number, since 3×422530399³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422530349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211265199 + 211265200.

It is an arithmetic number, because the mean of its divisors is an integer number (211265200).

Almost surely, 2^422530399 is an apocalyptic number.

422530399 is a deficient number, since it is larger than the sum of its proper divisors (1).

422530399 is an equidigital number, since it uses as much as digits as its factorization.

422530399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 422530399 is about 20555.5442399368. The cubic root of 422530399 is about 750.3881836425.

The spelling of 422530399 in words is "four hundred twenty-two million, five hundred thirty thousand, three hundred ninety-nine".