535240 has 16 divisors (see below), whose sum is σ = 1204380. Its totient is φ = 214080.

The previous prime is 535237. The next prime is 535243. The reversal of 535240 is 42535.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (535237) and next prime (535243).

It can be written as a sum of positive squares in 2 ways, for example, as 492804 + 42436 = 702^2 + 206^2 .

It is not an unprimeable number, because it can be changed into a prime (535243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6651 + ... + 6730.

2⁵³⁵²⁴⁰ is an apocalyptic number.

It is an amenable number.

535240 is an abundant number, since it is smaller than the sum of its proper divisors (669140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

535240 is a wasteful number, since it uses less digits than its factorization.

535240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13392 (or 13388 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 535240 is about 731.6009841437. The cubic root of 535240 is about 81.1925511055.

Adding to 535240 its reverse (42535), we get a palindrome (577775).

It can be divided in two parts, 5 and 35240, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 535240 in words is "five hundred thirty-five thousand, two hundred forty".