6374443221 has 6 divisors (see below), whose sum is σ = 9207529110. Its totient is φ = 4249628808.

The previous prime is 6374443219. The next prime is 6374443259. The reversal of 6374443221 is 1223444736.

6374443221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3722708196 + 2651735025 = 61014^2 + 51495^2 .

It is not a de Polignac number, because 6374443221 - 2¹ = 6374443219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6374443121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 354135726 + ... + 354135743.

It is an arithmetic number, because the mean of its divisors is an integer number (1534588185).

Almost surely, 2^6374443221 is an apocalyptic number.

It is an amenable number.

6374443221 is a deficient number, since it is larger than the sum of its proper divisors (2833085889).

6374443221 is a wasteful number, since it uses less digits than its factorization.

6374443221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708271475 (or 708271472 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 6374443221 is about 79840.1103518776. The cubic root of 6374443221 is about 1854.1609019943.

Adding to 6374443221 its reverse (1223444736), we get a palindrome (7597887957).

The spelling of 6374443221 in words is "six billion, three hundred seventy-four million, four hundred forty-three thousand, two hundred twenty-one".