422644801 has 2 divisors, whose sum is σ = 422644802. Its totient is φ = 422644800.

The previous prime is 422644799. The next prime is 422644813. The reversal of 422644801 is 108446224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397404225 + 25240576 = 19935^2 + 5024^2 .

It is a cyclic number.

It is not a de Polignac number, because 422644801 - 2¹ = 422644799 is a prime.

Together with 422644799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (422644841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211322400 + 211322401.

It is an arithmetic number, because the mean of its divisors is an integer number (211322401).

Almost surely, 2^422644801 is an apocalyptic number.

It is an amenable number.

422644801 is a deficient number, since it is larger than the sum of its proper divisors (1).

422644801 is an equidigital number, since it uses as much as digits as its factorization.

422644801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 422644801 is about 20558.3268044848. The cubic root of 422644801 is about 750.4559011864.

The spelling of 422644801 in words is "four hundred twenty-two million, six hundred forty-four thousand, eight hundred one".