422654399 has 2 divisors, whose sum is σ = 422654400. Its totient is φ = 422654398.

The previous prime is 422654389. The next prime is 422654429. The reversal of 422654399 is 993456224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422654399 - 2²⁰ = 421605823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422654359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211327199 + 211327200.

It is an arithmetic number, because the mean of its divisors is an integer number (211327200).

Almost surely, 2^422654399 is an apocalyptic number.

422654399 is a deficient number, since it is larger than the sum of its proper divisors (1).

422654399 is an equidigital number, since it uses as much as digits as its factorization.

422654399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 44.

The square root of 422654399 is about 20558.5602365535. The cubic root of 422654399 is about 750.4615819386.

It can be divided in two parts, 42265 and 4399, that added together give a palindrome (46664).

The spelling of 422654399 in words is "four hundred twenty-two million, six hundred fifty-four thousand, three hundred ninety-nine".