3221345444 has 6 divisors (see below), whose sum is σ = 5637354534. Its totient is φ = 1610672720.

The previous prime is 3221345411. The next prime is 3221345447. The reversal of 3221345444 is 4445431223.

It can be written as a sum of positive squares in only one way, i.e., 1644302500 + 1577042944 = 40550^2 + 39712^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3221345444.

It is not an unprimeable number, because it can be changed into a prime (3221345447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402668177 + ... + 402668184.

It is an arithmetic number, because the mean of its divisors is an integer number (939559089).

Almost surely, 2^3221345444 is an apocalyptic number.

It is an amenable number.

3221345444 is a deficient number, since it is larger than the sum of its proper divisors (2416009090).

3221345444 is a wasteful number, since it uses less digits than its factorization.

3221345444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805336365 (or 805336363 counting only the distinct ones).

The product of its digits is 46080, while the sum is 32.

The square root of 3221345444 is about 56756.8977658223. The cubic root of 3221345444 is about 1476.8818946397.

Adding to 3221345444 its reverse (4445431223), we get a palindrome (7666776667).

The spelling of 3221345444 in words is "three billion, two hundred twenty-one million, three hundred forty-five thousand, four hundred forty-four".