443541013 has 4 divisors (see below), whose sum is σ = 444986080. Its totient is φ = 442095948.

The previous prime is 443540989. The next prime is 443541017. The reversal of 443541013 is 310145344.

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 a cyclic number.

It is not a de Polignac number, because 443541013 - 2²⁵ = 409986581 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 (443541017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722073 + ... + 722686.

It is an arithmetic number, because the mean of its divisors is an integer number (111246520).

Almost surely, 2^443541013 is an apocalyptic number.

It is an amenable number.

443541013 is a deficient number, since it is larger than the sum of its proper divisors (1445067).

443541013 is a wasteful number, since it uses less digits than its factorization.

443541013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445066.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 443541013 is about 21060.4134099974. The cubic root of 443541013 is about 762.6253921885.

Adding to 443541013 its reverse (310145344), we get a palindrome (753686357).

The spelling of 443541013 in words is "four hundred forty-three million, five hundred forty-one thousand, thirteen".