3221442320 has 20 divisors (see below), whose sum is σ = 7489853580. Its totient is φ = 1288576896.

The previous prime is 3221442299. The next prime is 3221442373. The reversal of 3221442320 is 232441223.

It can be written as a sum of positive squares in 2 ways, for example, as 1453744384 + 1767697936 = 38128^2 + 42044^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20133935 + ... + 20134094.

It is an arithmetic number, because the mean of its divisors is an integer number (374492679).

Almost surely, 2^3221442320 is an apocalyptic number.

It is an amenable number.

3221442320 is an abundant number, since it is smaller than the sum of its proper divisors (4268411260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221442320 is a wasteful number, since it uses less digits than its factorization.

3221442320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40268042 (or 40268036 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 3221442320 is about 56757.7511887143. The cubic root of 3221442320 is about 1476.8966993208.

Adding to 3221442320 its reverse (232441223), we get a palindrome (3453883543).

The spelling of 3221442320 in words is "three billion, two hundred twenty-one million, four hundred forty-two thousand, three hundred twenty".