2771260140 has 48 divisors (see below), whose sum is σ = 8464942080. Its totient is φ = 671820480.

The previous prime is 2771260139. The next prime is 2771260147. The reversal of 2771260140 is 410621772.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2771260098 and 2771260107.

It is not an unprimeable number, because it can be changed into a prime (2771260147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2098780 + ... + 2100099.

It is an arithmetic number, because the mean of its divisors is an integer number (176352960).

Almost surely, 2^2771260140 is an apocalyptic number.

2771260140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2771260140 is an abundant number, since it is smaller than the sum of its proper divisors (5693681940).

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

2771260140 is a wasteful number, since it uses less digits than its factorization.

2771260140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198902 (or 4198900 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 2771260140 is about 52642.7596161144. The cubic root of 2771260140 is about 1404.6208101047.

The spelling of 2771260140 in words is "two billion, seven hundred seventy-one million, two hundred sixty thousand, one hundred forty".