2644292416 has 42 divisors (see below), whose sum is σ = 5339776722. Its totient is φ = 1298891520.

The previous prime is 2644292411. The next prime is 2644292419. The reversal of 2644292416 is 6142924462.

It can be written as a sum of positive squares in only one way, i.e., 1560566016 + 1083726400 = 39504^2 + 32920^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644292411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3212581 + ... + 3213403.

It is an arithmetic number, because the mean of its divisors is an integer number (127137541).

Almost surely, 2^2644292416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2644292416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2669888361).

2644292416 is an abundant number, since it is smaller than the sum of its proper divisors (2695484306).

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

2644292416 is an frugal number, since it uses more digits than its factorization.

2644292416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719 (or 886 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 2644292416 is about 51422.6838661694. The cubic root of 2644292416 is about 1382.8332911931.

The spelling of 2644292416 in words is "two billion, six hundred forty-four million, two hundred ninety-two thousand, four hundred sixteen".