2240543 has 4 divisors (see below), whose sum is σ = 2253240. Its totient is φ = 2227848.

The previous prime is 2240533. The next prime is 2240551. The reversal of 2240543 is 3450422.

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 2240543 - 2⁶ = 2240479 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 (2240533) 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, 6080 + ... + 6437.

It is an arithmetic number, because the mean of its divisors is an integer number (563310).

2^2240543 is an apocalyptic number.

2240543 is a deficient number, since it is larger than the sum of its proper divisors (12697).

2240543 is a wasteful number, since it uses less digits than its factorization.

2240543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12696.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2240543 is about 1496.8443472853. The cubic root of 2240543 is about 130.8532241070.

Adding to 2240543 its reverse (3450422), we get a palindrome (5690965).

The spelling of 2240543 in words is "two million, two hundred forty thousand, five hundred forty-three".