3280742784 has 256 divisors, whose sum is σ = 10639008000. Its totient is φ = 987033600.

The previous prime is 3280742737. The next prime is 3280742791. The reversal of 3280742784 is 4872470823.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8021172 + ... + 8021580.

It is an arithmetic number, because the mean of its divisors is an integer number (41558625).

Almost surely, 2^3280742784 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 3280742784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5319504000).

3280742784 is an abundant number, since it is smaller than the sum of its proper divisors (7358265216).

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

3280742784 is a wasteful number, since it uses less digits than its factorization.

3280742784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The square root of 3280742784 is about 57277.7686716234. The cubic root of 3280742784 is about 1485.9039165673.

The spelling of 3280742784 in words is "three billion, two hundred eighty million, seven hundred forty-two thousand, seven hundred eighty-four".