7443220001 has 48 divisors (see below), whose sum is σ = 9206618112. Its totient is φ = 5990745600.

The previous prime is 7443219997. The next prime is 7443220009. The reversal of 7443220001 is 1000223447.

It is not a de Polignac number, because 7443220001 - 2² = 7443219997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7443220009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9780461 + ... + 9781221.

It is an arithmetic number, because the mean of its divisors is an integer number (191804544).

Almost surely, 2^7443220001 is an apocalyptic number.

It is an amenable number.

7443220001 is a deficient number, since it is larger than the sum of its proper divisors (1763398111).

7443220001 is a wasteful number, since it uses less digits than its factorization.

7443220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 7443220001 is about 86274.0980885920. The cubic root of 7443220001 is about 1952.4816093942.

Adding to 7443220001 its reverse (1000223447), we get a palindrome (8443443448).

The spelling of 7443220001 in words is "seven billion, four hundred forty-three million, two hundred twenty thousand, one".