2440343 has 4 divisors (see below), whose sum is σ = 2448600. Its totient is φ = 2432088.

The previous prime is 2440331. The next prime is 2440363. The reversal of 2440343 is 3430442.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2440343 - 2⁴ = 2440327 is a prime.

It is a super-3 number, since 3×2440343³ = 43598733346893100821, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440313) 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, 3668 + ... + 4281.

It is an arithmetic number, because the mean of its divisors is an integer number (612150).

2^2440343 is an apocalyptic number.

2440343 is a deficient number, since it is larger than the sum of its proper divisors (8257).

2440343 is an equidigital number, since it uses as much as digits as its factorization.

2440343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8256.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2440343 is about 1562.1597229477. The cubic root of 2440343 is about 134.6326179591.

Adding to 2440343 its reverse (3430442), we get a palindrome (5870785).

Subtracting 2440343 from its reverse (3430442), we obtain a palindrome (990099).

The spelling of 2440343 in words is "two million, four hundred forty thousand, three hundred forty-three".