240542443 has 16 divisors (see below), whose sum is σ = 253169280. Its totient is φ = 228243456.

The previous prime is 240542363. The next prime is 240542447. The reversal of 240542443 is 344245042.

It is a de Polignac number, because none of the positive numbers 2^k-240542443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240542447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655246 + ... + 655612.

It is an arithmetic number, because the mean of its divisors is an integer number (15823080).

Almost surely, 2^240542443 is an apocalyptic number.

240542443 is a deficient number, since it is larger than the sum of its proper divisors (12626837).

240542443 is a wasteful number, since it uses less digits than its factorization.

240542443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 240542443 is about 15509.4307761439. The cubic root of 240542443 is about 621.9143423777.

Adding to 240542443 its reverse (344245042), we get a palindrome (584787485).

The spelling of 240542443 in words is "two hundred forty million, five hundred forty-two thousand, four hundred forty-three".