422726 has 8 divisors (see below), whose sum is σ = 640920. Its totient is φ = 209088.

The previous prime is 422711. The next prime is 422749. The reversal of 422726 is 627224.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422726.

It is an unprimeable number.

422726 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896 + ... + 1283.

It is an arithmetic number, because the mean of its divisors is an integer number (80115).

2⁴²²⁷²⁶ is an apocalyptic number.

422726 is a deficient number, since it is larger than the sum of its proper divisors (218194).

422726 is a wasteful number, since it uses less digits than its factorization.

422726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278.

The product of its digits is 1344, while the sum is 23.

The square root of 422726 is about 650.1738229120. The cubic root of 422726 is about 75.0503957589.

The spelling of 422726 in words is "four hundred twenty-two thousand, seven hundred twenty-six".