7844221441 has 8 divisors (see below), whose sum is σ = 8989799040. Its totient is φ = 6704887488.

The previous prime is 7844221439. The next prime is 7844221477. The reversal of 7844221441 is 1441224487.

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 7844221441 - 2¹ = 7844221439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7844221441.

It is not an unprimeable number, because it can be changed into a prime (7844021441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558216 + ... + 1563241.

It is an arithmetic number, because the mean of its divisors is an integer number (1123724880).

Almost surely, 2^7844221441 is an apocalyptic number.

It is an amenable number.

7844221441 is a deficient number, since it is larger than the sum of its proper divisors (1145577599).

7844221441 is a wasteful number, since it uses less digits than its factorization.

7844221441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121823.

The product of its digits is 57344, while the sum is 37.

The square root of 7844221441 is about 88567.6094348267. The cubic root of 7844221441 is about 1986.9332696123.

The spelling of 7844221441 in words is "seven billion, eight hundred forty-four million, two hundred twenty-one thousand, four hundred forty-one".