2740538 has 4 divisors (see below), whose sum is σ = 4110810. Its totient is φ = 1370268.

The previous prime is 2740537. The next prime is 2740559. The reversal of 2740538 is 8350472.

It is a happy number.

2740538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1456849 + 1283689 = 1207^2 + 1133^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2740538.

It is not an unprimeable number, because it can be changed into a prime (2740537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685133 + ... + 685136.

2^2740538 is an apocalyptic number.

2740538 is a deficient number, since it is larger than the sum of its proper divisors (1370272).

2740538 is a wasteful number, since it uses less digits than its factorization.

2740538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370271.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2740538 is about 1655.4570365914. The cubic root of 2740538 is about 139.9410976704.

The spelling of 2740538 in words is "two million, seven hundred forty thousand, five hundred thirty-eight".