444413 has 4 divisors (see below), whose sum is σ = 445788. Its totient is φ = 443040.

The previous prime is 444403. The next prime is 444421. The reversal of 444413 is 314444.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 68644 + 375769 = 262^2 + 613^2 .

It is a cyclic number.

It is not a de Polignac number, because 444413 - 2⁶ = 444349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 444413.

It is not an unprimeable number, because it can be changed into a prime (444403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95 + ... + 947.

It is an arithmetic number, because the mean of its divisors is an integer number (111447).

2⁴⁴⁴⁴¹³ is an apocalyptic number.

It is an amenable number.

444413 is a deficient number, since it is larger than the sum of its proper divisors (1375).

444413 is an equidigital number, since it uses as much as digits as its factorization.

444413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374.

The product of its digits is 768, while the sum is 20.

The square root of 444413 is about 666.6430829162. The cubic root of 444413 is about 76.3124830493.

Adding to 444413 its reverse (314444), we get a palindrome (758857).

It can be divided in two parts, 44441 and 3, that added together give a palindrome (44444).

The spelling of 444413 in words is "four hundred forty-four thousand, four hundred thirteen".