443421013 has 16 divisors (see below), whose sum is σ = 540152064. Its totient is φ = 355334400.

The previous prime is 443420969. The next prime is 443421019. The reversal of 443421013 is 310124344.

It is a cyclic number.

It is not a de Polignac number, because 443421013 - 2⁹ = 443420501 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 (443421019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5631 + ... + 30307.

It is an arithmetic number, because the mean of its divisors is an integer number (33759504).

Almost surely, 2^443421013 is an apocalyptic number.

It is an amenable number.

443421013 is a deficient number, since it is larger than the sum of its proper divisors (96731051).

443421013 is a wasteful number, since it uses less digits than its factorization.

443421013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24852.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 443421013 is about 21057.5642703519. The cubic root of 443421013 is about 762.5566098972.

Adding to 443421013 its reverse (310124344), we get a palindrome (753545357).

The spelling of 443421013 in words is "four hundred forty-three million, four hundred twenty-one thousand, thirteen".