3305722240 has 32 divisors (see below), whose sum is σ = 7902743760. Its totient is φ = 1322288640.

The previous prime is 3305722237. The next prime is 3305722247. The reversal of 3305722240 is 422275033.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 3305722199 and 3305722208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3305722247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2581956 + ... + 2583235.

Almost surely, 2^3305722240 is an apocalyptic number.

It is an amenable number.

3305722240 is an abundant number, since it is smaller than the sum of its proper divisors (4597021520).

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

3305722240 is an equidigital number, since it uses as much as digits as its factorization.

3305722240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165210 (or 5165198 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 3305722240 is about 57495.4105994557. The cubic root of 3305722240 is about 1489.6655916643.

Adding to 3305722240 its reverse (422275033), we get a palindrome (3727997273).

The spelling of 3305722240 in words is "three billion, three hundred five million, seven hundred twenty-two thousand, two hundred forty".