2540233 has 4 divisors (see below), whose sum is σ = 2622208. Its totient is φ = 2458260.

The previous prime is 2540231. The next prime is 2540249. The reversal of 2540233 is 3320452.

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 2540233 - 2¹ = 2540231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2540233.

It is not an unprimeable number, because it can be changed into a prime (2540231) 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, 40941 + ... + 41002.

It is an arithmetic number, because the mean of its divisors is an integer number (655552).

2^2540233 is an apocalyptic number.

It is an amenable number.

2540233 is a deficient number, since it is larger than the sum of its proper divisors (81975).

2540233 is an equidigital number, since it uses as much as digits as its factorization.

2540233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81974.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 2540233 is about 1593.8108419759. The cubic root of 2540233 is about 136.4450708604.

Adding to 2540233 its reverse (3320452), we get a palindrome (5860685).

The spelling of 2540233 in words is "two million, five hundred forty thousand, two hundred thirty-three".