3221405441 has 2 divisors, whose sum is σ = 3221405442. Its totient is φ = 3221405440.

The previous prime is 3221405437. The next prime is 3221405503. The reversal of 3221405441 is 1445041223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2428419841 + 792985600 = 49279^2 + 28160^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221405441 - 2² = 3221405437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3221405441.

It is not a weakly prime, because it can be changed into another prime (3221405741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610702720 + 1610702721.

It is an arithmetic number, because the mean of its divisors is an integer number (1610702721).

Almost surely, 2^3221405441 is an apocalyptic number.

It is an amenable number.

3221405441 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221405441 is an equidigital number, since it uses as much as digits as its factorization.

3221405441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 3221405441 is about 56757.4263070481. The cubic root of 3221405441 is about 1476.8910634724.

Adding to 3221405441 its reverse (1445041223), we get a palindrome (4666446664).

The spelling of 3221405441 in words is "three billion, two hundred twenty-one million, four hundred five thousand, four hundred forty-one".