2644241328 has 40 divisors (see below), whose sum is σ = 7589953200. Its totient is φ = 881413632.

The previous prime is 2644241293. The next prime is 2644241333. The reversal of 2644241328 is 8231424462.

2644241328 is a `hidden beast` number, since 2 + 644 + 2 + 4 + 1 + 3 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 2644241292 and 2644241301.

It is an unprimeable number.

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, 3060033 + ... + 3060896.

It is an arithmetic number, because the mean of its divisors is an integer number (189748830).

Almost surely, 2^2644241328 is an apocalyptic number.

It is an amenable number.

2644241328 is an abundant number, since it is smaller than the sum of its proper divisors (4945711872).

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

2644241328 is a wasteful number, since it uses less digits than its factorization.

2644241328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120946 (or 6120934 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 2644241328 is about 51422.1871180136. The cubic root of 2644241328 is about 1382.8243856422.

The spelling of 2644241328 in words is "two billion, six hundred forty-four million, two hundred forty-one thousand, three hundred twenty-eight".