444013 has 4 divisors (see below), whose sum is σ = 458368. Its totient is φ = 429660.

The previous prime is 444007. The next prime is 444029. The reversal of 444013 is 310444.

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 444013 - 2⁹ = 443501 is a prime.

It is a Duffinian number.

444013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444043) 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, 7131 + ... + 7192.

It is an arithmetic number, because the mean of its divisors is an integer number (114592).

2⁴⁴⁴⁰¹³ is an apocalyptic number.

It is an amenable number.

444013 is a deficient number, since it is larger than the sum of its proper divisors (14355).

444013 is a wasteful number, since it uses less digits than its factorization.

444013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14354.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 444013 is about 666.3430047656. The cubic root of 444013 is about 76.2895808120.

Adding to 444013 its reverse (310444), we get a palindrome (754457).

The spelling of 444013 in words is "four hundred forty-four thousand, thirteen".