2740730 has 16 divisors (see below), whose sum is σ = 5015304. Its totient is φ = 1078080.

The previous prime is 2740721. The next prime is 2740733. The reversal of 2740730 is 370472.

It can be written as a sum of positive squares in 4 ways, for example, as 2319529 + 421201 = 1523^2 + 649^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2740696 and 2740705.

It is not an unprimeable number, because it can be changed into a prime (2740733) 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 7 ways as a sum of consecutive naturals, for example, 1637 + ... + 2856.

2^2740730 is an apocalyptic number.

2740730 is a deficient number, since it is larger than the sum of its proper divisors (2274574).

2740730 is a wasteful number, since it uses less digits than its factorization.

2740730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 2740730 is about 1655.5150256038. The cubic root of 2740730 is about 139.9443656496.

The spelling of 2740730 in words is "two million, seven hundred forty thousand, seven hundred thirty".