444661 has 8 divisors (see below), whose sum is σ = 512960. Its totient is φ = 377568.

The previous prime is 444649. The next prime is 444671. The reversal of 444661 is 166444.

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

It is a cyclic number.

It is not a de Polignac number, because 444661 - 2¹⁷ = 313589 is a prime.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745 + ... + 1201.

It is an arithmetic number, because the mean of its divisors is an integer number (64120).

2⁴⁴⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

444661 is a deficient number, since it is larger than the sum of its proper divisors (68299).

444661 is a wasteful number, since it uses less digits than its factorization.

444661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603.

The product of its digits is 2304, while the sum is 25.

The square root of 444661 is about 666.8290635538. The cubic root of 444661 is about 76.3266755358.

The spelling of 444661 in words is "four hundred forty-four thousand, six hundred sixty-one".