3305722261 has 4 divisors (see below), whose sum is σ = 3313184832. Its totient is φ = 3298259692.

The previous prime is 3305722247. The next prime is 3305722271. The reversal of 3305722261 is 1622275033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3305722261 - 2⁵ = 3305722229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3305722271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3730621 + ... + 3731506.

It is an arithmetic number, because the mean of its divisors is an integer number (828296208).

Almost surely, 2^3305722261 is an apocalyptic number.

It is an amenable number.

3305722261 is a deficient number, since it is larger than the sum of its proper divisors (7462571).

3305722261 is an equidigital number, since it uses as much as digits as its factorization.

3305722261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7462570.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 3305722261 is about 57495.4107820789. The cubic root of 3305722261 is about 1489.6655948188.

Adding to 3305722261 its reverse (1622275033), we get a palindrome (4927997294).

The spelling of 3305722261 in words is "three billion, three hundred five million, seven hundred twenty-two thousand, two hundred sixty-one".