422746 has 4 divisors (see below), whose sum is σ = 634122. Its totient is φ = 211372.

The previous prime is 422711. The next prime is 422749. The reversal of 422746 is 647224.

422746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 378225 + 44521 = 615^2 + 211^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 422746.

It is not an unprimeable number, because it can be changed into a prime (422749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105685 + ... + 105688.

2⁴²²⁷⁴⁶ is an apocalyptic number.

422746 is a deficient number, since it is larger than the sum of its proper divisors (211376).

422746 is a wasteful number, since it uses less digits than its factorization.

422746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211375.

The product of its digits is 2688, while the sum is 25.

The square root of 422746 is about 650.1892032324. The cubic root of 422746 is about 75.0515793343.

The spelling of 422746 in words is "four hundred twenty-two thousand, seven hundred forty-six".