443140241 has 16 divisors (see below), whose sum is σ = 501012864. Its totient is φ = 389647104.

The previous prime is 443140223. The next prime is 443140273. The reversal of 443140241 is 142041344.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443140241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (443140741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3635 + ... + 29991.

It is an arithmetic number, because the mean of its divisors is an integer number (31313304).

Almost surely, 2^443140241 is an apocalyptic number.

It is an amenable number.

443140241 is a deficient number, since it is larger than the sum of its proper divisors (57872623).

443140241 is a wasteful number, since it uses less digits than its factorization.

443140241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26440.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 443140241 is about 21050.8964417195. The cubic root of 443140241 is about 762.3956268855.

Adding to 443140241 its reverse (142041344), we get a palindrome (585181585).

The spelling of 443140241 in words is "four hundred forty-three million, one hundred forty thousand, two hundred forty-one".