3296566728 has 576 divisors, whose sum is σ = 12266856000. Its totient is φ = 815173632.

The previous prime is 3296566687. The next prime is 3296566783. The reversal of 3296566728 is 8276656923.

3296566728 is a `hidden beast` number, since 3 + 2 + 9 + 6 + 566 + 72 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 33985176 + ... + 33985272.

It is an arithmetic number, because the mean of its divisors is an integer number (21296625).

Almost surely, 2^3296566728 is an apocalyptic number.

3296566728 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3296566728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6133428000).

3296566728 is an abundant number, since it is smaller than the sum of its proper divisors (8970289272).

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

3296566728 is a wasteful number, since it uses less digits than its factorization.

3296566728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 141 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 3296566728 is about 57415.7358918267. The cubic root of 3296566728 is about 1488.2890632490.

The spelling of 3296566728 in words is "three billion, two hundred ninety-six million, five hundred sixty-six thousand, seven hundred twenty-eight".