3315213440 has 128 divisors (see below), whose sum is σ = 9881205120. Its totient is φ = 1033297920.

The previous prime is 3315213427. The next prime is 3315213443. The reversal of 3315213440 is 443125133.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (3315213443) 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 in 15 ways as a sum of consecutive naturals, for example, 15644 + ... + 82916.

It is an arithmetic number, because the mean of its divisors is an integer number (77196915).

Almost surely, 2^3315213440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3315213440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4940602560).

3315213440 is an abundant number, since it is smaller than the sum of its proper divisors (6565991680).

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

3315213440 is a wasteful number, since it uses less digits than its factorization.

3315213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67310 (or 67298 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 3315213440 is about 57577.8902010138. The cubic root of 3315213440 is about 1491.0899101802.

Adding to 3315213440 its reverse (443125133), we get a palindrome (3758338573).

The spelling of 3315213440 in words is "three billion, three hundred fifteen million, two hundred thirteen thousand, four hundred forty".