2749708640 has 96 divisors (see below), whose sum is σ = 7451486784. Its totient is φ = 939294720.

The previous prime is 2749708589. The next prime is 2749708669. The reversal of 2749708640 is 468079472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310352 + ... + 319088.

It is an arithmetic number, because the mean of its divisors is an integer number (77619654).

Almost surely, 2^2749708640 is an apocalyptic number.

2749708640 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 2749708640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3725743392).

2749708640 is an abundant number, since it is smaller than the sum of its proper divisors (4701778144).

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

2749708640 is a wasteful number, since it uses less digits than its factorization.

2749708640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040 (or 9032 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 2749708640 is about 52437.6643263218. The cubic root of 2749708640 is about 1400.9701846602.

The spelling of 2749708640 in words is "two billion, seven hundred forty-nine million, seven hundred eight thousand, six hundred forty".