2756306380 has 12 divisors (see below), whose sum is σ = 5788243440. Its totient is φ = 1102522544.

The previous prime is 2756306369. The next prime is 2756306387. The reversal of 2756306380 is 836036572.

It is not an unprimeable number, because it can be changed into a prime (2756306387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68907640 + ... + 68907679.

It is an arithmetic number, because the mean of its divisors is an integer number (482353620).

Almost surely, 2^2756306380 is an apocalyptic number.

2756306380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2756306380 is an abundant number, since it is smaller than the sum of its proper divisors (3031937060).

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

2756306380 is a wasteful number, since it uses less digits than its factorization.

2756306380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137815328 (or 137815326 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 2756306380 is about 52500.5369496351. The cubic root of 2756306380 is about 1402.0898007400.

It can be divided in two parts, 2756 and 306380, that added together give a square (309136 = 556²).

The spelling of 2756306380 in words is "two billion, seven hundred fifty-six million, three hundred six thousand, three hundred eighty".