444646 has 4 divisors (see below), whose sum is σ = 666972. Its totient is φ = 222322.

The previous prime is 444641. The next prime is 444649. The reversal of 444646 is 646444.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160 + ... + 111163.

It is an arithmetic number, because the mean of its divisors is an integer number (166743).

2⁴⁴⁴⁶⁴⁶ is an apocalyptic number.

444646 is a deficient number, since it is larger than the sum of its proper divisors (222326).

444646 is a wasteful number, since it uses less digits than its factorization.

444646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222325.

The product of its digits is 9216, while the sum is 28.

The square root of 444646 is about 666.8178161987. The cubic root of 444646 is about 76.3258172692.

The spelling of 444646 in words is "four hundred forty-four thousand, six hundred forty-six".