2646244272 has 40 divisors (see below), whose sum is σ = 7812722176. Its totient is φ = 756069696.

The previous prime is 2646244219. The next prime is 2646244273. The reversal of 2646244272 is 2724426462.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2646244272.

It is not an unprimeable number, because it can be changed into a prime (2646244273) 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, 3937528 + ... + 3938199.

Almost surely, 2^2646244272 is an apocalyptic number.

It is an amenable number.

2646244272 is an abundant number, since it is smaller than the sum of its proper divisors (5166477904).

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

2646244272 is a wasteful number, since it uses less digits than its factorization.

2646244272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875745 (or 7875739 counting only the distinct ones).

The product of its digits is 258048, while the sum is 39.

The square root of 2646244272 is about 51441.6589157076. The cubic root of 2646244272 is about 1383.1734486848.

The spelling of 2646244272 in words is "two billion, six hundred forty-six million, two hundred forty-four thousand, two hundred seventy-two".