444432013 has 8 divisors (see below), whose sum is σ = 463974336. Its totient is φ = 424908000.

The previous prime is 444432011. The next prime is 444432019. The reversal of 444432013 is 310234444.

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 444432013 - 2¹ = 444432011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444432011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73713 + ... + 79513.

It is an arithmetic number, because the mean of its divisors is an integer number (57996792).

Almost surely, 2^444432013 is an apocalyptic number.

It is an amenable number.

444432013 is a deficient number, since it is larger than the sum of its proper divisors (19542323).

444432013 is a wasteful number, since it uses less digits than its factorization.

444432013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9155.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 444432013 is about 21081.5562281346. The cubic root of 444432013 is about 763.1357130768.

Adding to 444432013 its reverse (310234444), we get a palindrome (754666457).

The spelling of 444432013 in words is "four hundred forty-four million, four hundred thirty-two thousand, thirteen".