422001999 has 24 divisors (see below), whose sum is σ = 673481952. Its totient is φ = 253271040.

The previous prime is 422001949. The next prime is 422002001. The reversal of 422001999 is 999100224.

It is not a de Polignac number, because 422001999 - 2¹¹ = 421999951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422001929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56442 + ... + 63479.

It is an arithmetic number, because the mean of its divisors is an integer number (28061748).

Almost surely, 2^422001999 is an apocalyptic number.

422001999 is a deficient number, since it is larger than the sum of its proper divisors (251479953).

422001999 is a wasteful number, since it uses less digits than its factorization.

422001999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119967 (or 119964 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 422001999 is about 20542.6872390153. The cubic root of 422001999 is about 750.0752511161.

The spelling of 422001999 in words is "four hundred twenty-two million, one thousand, nine hundred ninety-nine".