443426 has 4 divisors (see below), whose sum is σ = 665142. Its totient is φ = 221712.

The previous prime is 443423. The next prime is 443431. The reversal of 443426 is 624344.

It is a happy number.

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., 354025 + 89401 = 595^2 + 299^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110855 + ... + 110858.

2⁴⁴³⁴²⁶ is an apocalyptic number.

443426 is a deficient number, since it is larger than the sum of its proper divisors (221716).

443426 is a wasteful number, since it uses less digits than its factorization.

443426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221715.

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

The square root of 443426 is about 665.9023952502. The cubic root of 443426 is about 76.2559468622.

The spelling of 443426 in words is "four hundred forty-three thousand, four hundred twenty-six".