535440243 has 32 divisors (see below), whose sum is σ = 778982400. Its totient is φ = 325190016.

The previous prime is 535440239. The next prime is 535440259. The reversal of 535440243 is 342044535.

It is not a de Polignac number, because 535440243 - 2² = 535440239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 535440243.

It is not an unprimeable number, because it can be changed into a prime (535440203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1491298 + ... + 1491656.

It is an arithmetic number, because the mean of its divisors is an integer number (24343200).

Almost surely, 2^535440243 is an apocalyptic number.

535440243 is a deficient number, since it is larger than the sum of its proper divisors (243542157).

535440243 is a wasteful number, since it uses less digits than its factorization.

535440243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 535440243 is about 23139.5817377929. The cubic root of 535440243 is about 812.0267504554.

Adding to 535440243 its reverse (342044535), we get a palindrome (877484778).

The spelling of 535440243 in words is "five hundred thirty-five million, four hundred forty thousand, two hundred forty-three".