441993 has 4 divisors (see below), whose sum is σ = 589328. Its totient is φ = 294660.

The previous prime is 441971. The next prime is 442003. The reversal of 441993 is 399144.

441993 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 441993 - 2⁸ = 441737 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

441993 is strictly pandigital in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 441993.

It is not an unprimeable number, because it can be changed into a prime (441913) 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, 73663 + ... + 73668.

It is an arithmetic number, because the mean of its divisors is an integer number (147332).

2⁴⁴¹⁹⁹³ is an apocalyptic number.

It is an amenable number.

441993 is a deficient number, since it is larger than the sum of its proper divisors (147335).

441993 is a wasteful number, since it uses less digits than its factorization.

441993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147334.

The product of its digits is 3888, while the sum is 30.

The square root of 441993 is about 664.8255410256. The cubic root of 441993 is about 76.1737139030.

Subtracting from 441993 its reverse (399144), we obtain a square (42849 = 207²).

The spelling of 441993 in words is "four hundred forty-one thousand, nine hundred ninety-three".