2740237 has 4 divisors (see below), whose sum is σ = 2884480. Its totient is φ = 2595996.

The previous prime is 2740223. The next prime is 2740249. The reversal of 2740237 is 7320472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2740237 - 2¹⁹ = 2215949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72093 + ... + 72130.

It is an arithmetic number, because the mean of its divisors is an integer number (721120).

2^2740237 is an apocalyptic number.

It is an amenable number.

2740237 is a deficient number, since it is larger than the sum of its proper divisors (144243).

2740237 is a wasteful number, since it uses less digits than its factorization.

2740237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144242.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 2740237 is about 1655.3661226448. The cubic root of 2740237 is about 139.9359741250.

The spelling of 2740237 in words is "two million, seven hundred forty thousand, two hundred thirty-seven".