422491643 has 8 divisors (see below), whose sum is σ = 484497888. Its totient is φ = 360897984.

The previous prime is 422491627. The next prime is 422491681. The reversal of 422491643 is 346194224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422491643 - 2⁴ = 422491627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422491243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100946 + ... + 105047.

It is an arithmetic number, because the mean of its divisors is an integer number (60562236).

Almost surely, 2^422491643 is an apocalyptic number.

422491643 is a deficient number, since it is larger than the sum of its proper divisors (62006245).

422491643 is a wasteful number, since it uses less digits than its factorization.

422491643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206293.

The product of its digits is 41472, while the sum is 35.

The square root of 422491643 is about 20554.6015042861. The cubic root of 422491643 is about 750.3652401780.

The spelling of 422491643 in words is "four hundred twenty-two million, four hundred ninety-one thousand, six hundred forty-three".