2749447134 has 144 divisors (see below), whose sum is σ = 7172856288. Its totient is φ = 758346624.

The previous prime is 2749447123. The next prime is 2749447139. The reversal of 2749447134 is 4317449472.

2749447134 is a `hidden beast` number, since 2 + 74 + 9 + 447 + 134 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2749447134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749447139) 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 71 ways as a sum of consecutive naturals, for example, 5645439 + ... + 5645925.

It is an arithmetic number, because the mean of its divisors is an integer number (49811502).

Almost surely, 2^2749447134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2749447134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3586428144).

2749447134 is an abundant number, since it is smaller than the sum of its proper divisors (4423409154).

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

2749447134 is a wasteful number, since it uses less digits than its factorization.

2749447134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 709 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 2749447134 is about 52435.1707730603. The cubic root of 2749447134 is about 1400.9257710184.

The spelling of 2749447134 in words is "two billion, seven hundred forty-nine million, four hundred forty-seven thousand, one hundred thirty-four".