2540237 has 16 divisors (see below), whose sum is σ = 3048192. Its totient is φ = 2071680.

The previous prime is 2540231. The next prime is 2540249. The reversal of 2540237 is 7320452.

2540237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2540237 - 2⁶ = 2540173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540231) 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 in 15 ways as a sum of consecutive naturals, for example, 15128 + ... + 15294.

It is an arithmetic number, because the mean of its divisors is an integer number (190512).

2^2540237 is an apocalyptic number.

It is an amenable number.

2540237 is a deficient number, since it is larger than the sum of its proper divisors (507955).

2540237 is a wasteful number, since it uses less digits than its factorization.

2540237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2540237 is about 1593.8120968295. The cubic root of 2540237 is about 136.4451424785.

Adding to 2540237 its reverse (7320452), we get a palindrome (9860689).

The spelling of 2540237 in words is "two million, five hundred forty thousand, two hundred thirty-seven".