3260915840 has 384 divisors, whose sum is σ = 9945244800. Its totient is φ = 1000636416.

The previous prime is 3260915837. The next prime is 3260915849. The reversal of 3260915840 is 485190623.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3260915794 and 3260915803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3260915849) 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 47 ways as a sum of consecutive naturals, for example, 44670044 + ... + 44670116.

It is an arithmetic number, because the mean of its divisors is an integer number (25899075).

Almost surely, 2^3260915840 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 3260915840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4972622400).

3260915840 is an abundant number, since it is smaller than the sum of its proper divisors (6684328960).

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

3260915840 is a wasteful number, since it uses less digits than its factorization.

3260915840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 3260915840 is about 57104.4292502780. The cubic root of 3260915840 is about 1482.9045467974.

The spelling of 3260915840 in words is "three billion, two hundred sixty million, nine hundred fifteen thousand, eight hundred forty".