2646328028 has 6 divisors (see below), whose sum is σ = 4631074056. Its totient is φ = 1323164012.

The previous prime is 2646328021. The next prime is 2646328049. The reversal of 2646328028 is 8208236462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646328021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330791000 + ... + 330791007.

It is an arithmetic number, because the mean of its divisors is an integer number (771845676).

Almost surely, 2^2646328028 is an apocalyptic number.

It is an amenable number.

2646328028 is a deficient number, since it is larger than the sum of its proper divisors (1984746028).

2646328028 is a wasteful number, since it uses less digits than its factorization.

2646328028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661582011 (or 661582009 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 2646328028 is about 51442.4729965425. The cubic root of 2646328028 is about 1383.1880414234.

The spelling of 2646328028 in words is "two billion, six hundred forty-six million, three hundred twenty-eight thousand, twenty-eight".