2240402543 has 4 divisors (see below), whose sum is σ = 2262154128. Its totient is φ = 2218650960.

The previous prime is 2240402539. The next prime is 2240402551. The reversal of 2240402543 is 3452040422.

It is a happy number.

2240402543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2240402543 - 2² = 2240402539 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 (2240302543) 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, 10875638 + ... + 10875843.

It is an arithmetic number, because the mean of its divisors is an integer number (565538532).

Almost surely, 2^2240402543 is an apocalyptic number.

2240402543 is a deficient number, since it is larger than the sum of its proper divisors (21751585).

2240402543 is a wasteful number, since it uses less digits than its factorization.

2240402543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21751584.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 2240402543 is about 47332.8907103718. The cubic root of 2240402543 is about 1308.5048970503.

Adding to 2240402543 its reverse (3452040422), we get a palindrome (5692442965).

The spelling of 2240402543 in words is "two billion, two hundred forty million, four hundred two thousand, five hundred forty-three".