2646306256 has 40 divisors (see below), whose sum is σ = 5600204064. Its totient is φ = 1201388160.

The previous prime is 2646306253. The next prime is 2646306259. The reversal of 2646306256 is 6526036462.

It is an interprime number because it is at equal distance from previous prime (2646306253) and next prime (2646306259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646306253) 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 in 7 ways as a sum of consecutive naturals, for example, 141315 + ... + 158941.

Almost surely, 2^2646306256 is an apocalyptic number.

It is an amenable number.

2646306256 is an abundant number, since it is smaller than the sum of its proper divisors (2953897808).

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

2646306256 is a wasteful number, since it uses less digits than its factorization.

2646306256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18499 (or 18493 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The square root of 2646306256 is about 51442.2613810863. The cubic root of 2646306256 is about 1383.1842481355.

The spelling of 2646306256 in words is "two billion, six hundred forty-six million, three hundred six thousand, two hundred fifty-six".