2644137330 has 64 divisors (see below), whose sum is σ = 6726976128. Its totient is φ = 662860800.

The previous prime is 2644137317. The next prime is 2644137361. The reversal of 2644137330 is 337314462.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2644137291 and 2644137300.

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 31 ways as a sum of consecutive naturals, for example, 533544 + ... + 538476.

It is an arithmetic number, because the mean of its divisors is an integer number (105109002).

Almost surely, 2^2644137330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2644137330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3363488064).

2644137330 is an abundant number, since it is smaller than the sum of its proper divisors (4082838798).

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

2644137330 is a wasteful number, since it uses less digits than its factorization.

2644137330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 2644137330 is about 51421.1758908720. The cubic root of 2644137330 is about 1382.8062565788.

The spelling of 2644137330 in words is "two billion, six hundred forty-four million, one hundred thirty-seven thousand, three hundred thirty".