2749179720 has 128 divisors (see below), whose sum is σ = 9580458240. Its totient is φ = 618071040.

The previous prime is 2749179703. The next prime is 2749179721. The reversal of 2749179720 is 279719472.

2749179720 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2749179720.

It is not an unprimeable number, because it can be changed into a prime (2749179721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24414 + ... + 78066.

It is an arithmetic number, because the mean of its divisors is an integer number (74847330).

Almost surely, 2^2749179720 is an apocalyptic number.

2749179720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2749179720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4790229120).

2749179720 is an abundant number, since it is smaller than the sum of its proper divisors (6831278520).

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

2749179720 is a wasteful number, since it uses less digits than its factorization.

2749179720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53735 (or 53731 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 48.

The square root of 2749179720 is about 52432.6207622697. The cubic root of 2749179720 is about 1400.8803510616.

The spelling of 2749179720 in words is "two billion, seven hundred forty-nine million, one hundred seventy-nine thousand, seven hundred twenty".