441638 has 8 divisors (see below), whose sum is σ = 665280. Its totient is φ = 219880.

The previous prime is 441631. The next prime is 441647. The reversal of 441638 is 836144.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441631) 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 3 ways as a sum of consecutive naturals, for example, 683 + ... + 1161.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2⁴⁴¹⁶³⁸ is an apocalyptic number.

441638 is a deficient number, since it is larger than the sum of its proper divisors (223642).

441638 is a wasteful number, since it uses less digits than its factorization.

441638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942.

The product of its digits is 2304, while the sum is 26.

The square root of 441638 is about 664.5585000585. The cubic root of 441638 is about 76.1533147025.

The spelling of 441638 in words is "four hundred forty-one thousand, six hundred thirty-eight".