2749251492 has 288 divisors, whose sum is σ = 8347981824. Its totient is φ = 754790400.

The previous prime is 2749251403. The next prime is 2749251521. The reversal of 2749251492 is 2941529472.

2749251492 is a `hidden beast` number, since 2 + 7 + 49 + 2 + 514 + 92 = 666.

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 95 ways as a sum of consecutive naturals, for example, 17511078 + ... + 17511234.

It is an arithmetic number, because the mean of its divisors is an integer number (28986048).

Almost surely, 2^2749251492 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 2749251492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4173990912).

2749251492 is an abundant number, since it is smaller than the sum of its proper divisors (5598730332).

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

2749251492 is a wasteful number, since it uses less digits than its factorization.

2749251492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 294 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 2749251492 is about 52433.3051790558. The cubic root of 2749251492 is about 1400.8925417415.

The spelling of 2749251492 in words is "two billion, seven hundred forty-nine million, two hundred fifty-one thousand, four hundred ninety-two".