2540238 has 32 divisors (see below), whose sum is σ = 5287680. Its totient is φ = 813120.

The previous prime is 2540231. The next prime is 2540249. The reversal of 2540238 is 8320452.

2540238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 28498 + ... + 28586.

It is an arithmetic number, because the mean of its divisors is an integer number (165240).

2^2540238 is an apocalyptic number.

2540238 is an abundant number, since it is smaller than the sum of its proper divisors (2747442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2540238 is a wasteful number, since it uses less digits than its factorization.

2540238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2540238 is about 1593.8124105427. The cubic root of 2540238 is about 136.4451603831.

The spelling of 2540238 in words is "two million, five hundred forty thousand, two hundred thirty-eight".