423446 has 4 divisors (see below), whose sum is σ = 635172. Its totient is φ = 211722.

The previous prime is 423439. The next prime is 423457. The reversal of 423446 is 644324.

It is a happy number.

It is a semiprime because it is the product of two 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 423446.

It is an unprimeable number.

423446 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 as a sum of consecutive naturals, namely, 105860 + ... + 105863.

It is an arithmetic number, because the mean of its divisors is an integer number (158793).

2⁴²³⁴⁴⁶ is an apocalyptic number.

423446 is a deficient number, since it is larger than the sum of its proper divisors (211726).

423446 is a wasteful number, since it uses less digits than its factorization.

423446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211725.

The product of its digits is 2304, while the sum is 23.

The square root of 423446 is about 650.7272854276. The cubic root of 423446 is about 75.0929809758.

The spelling of 423446 in words is "four hundred twenty-three thousand, four hundred forty-six".