2740238 has 8 divisors (see below), whose sum is σ = 4121040. Its totient is φ = 1366560.

The previous prime is 2740223. The next prime is 2740249. The reversal of 2740238 is 8320472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (515130).

2^2740238 is an apocalyptic number.

2740238 is a deficient number, since it is larger than the sum of its proper divisors (1380802).

2740238 is a wasteful number, since it uses less digits than its factorization.

2740238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 2740238 is about 1655.3664246927. The cubic root of 2740238 is about 139.9359911474.

The spelling of 2740238 in words is "two million, seven hundred forty thousand, two hundred thirty-eight".