2749291308 has 72 divisors (see below), whose sum is σ = 7216761552. Its totient is φ = 915188544.

The previous prime is 2749291297. The next prime is 2749291309. The reversal of 2749291308 is 8031929472.

2749291308 is a `hidden beast` number, since 27 + 492 + 9 + 130 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (2749291309) 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 23 ways as a sum of consecutive naturals, for example, 967666 + ... + 970502.

Almost surely, 2^2749291308 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 2749291308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3608380776).

2749291308 is an abundant number, since it is smaller than the sum of its proper divisors (4467470244).

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

2749291308 is a wasteful number, since it uses less digits than its factorization.

2749291308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853 (or 3839 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 2749291308 is about 52433.6848600210. The cubic root of 2749291308 is about 1400.8993045117.

The spelling of 2749291308 in words is "two billion, seven hundred forty-nine million, two hundred ninety-one thousand, three hundred eight".