2740005220 has 12 divisors (see below), whose sum is σ = 5754011004. Its totient is φ = 1096002080.

The previous prime is 2740005199. The next prime is 2740005221. The reversal of 2740005220 is 225000472.

It can be written as a sum of positive squares in 2 ways, for example, as 818760996 + 1921244224 = 28614^2 + 43832^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2740005191 and 2740005200.

It is not an unprimeable number, because it can be changed into a prime (2740005221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68500111 + ... + 68500150.

It is an arithmetic number, because the mean of its divisors is an integer number (479500917).

Almost surely, 2^2740005220 is an apocalyptic number.

2740005220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2740005220 is an abundant number, since it is smaller than the sum of its proper divisors (3014005784).

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

2740005220 is a wasteful number, since it uses less digits than its factorization.

2740005220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137000270 (or 137000268 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 2740005220 is about 52345.0591746728. The cubic root of 2740005220 is about 1399.3202856914.

Adding to 2740005220 its reverse (225000472), we get a palindrome (2965005692).

The spelling of 2740005220 in words is "two billion, seven hundred forty million, five thousand, two hundred twenty".