240536 has 16 divisors (see below), whose sum is σ = 456840. Its totient is φ = 118720.

The previous prime is 240517. The next prime is 240551. The reversal of 240536 is 635042.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 240536.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716 + ... + 996.

2²⁴⁰⁵³⁶ is an apocalyptic number.

It is an amenable number.

240536 is a deficient number, since it is larger than the sum of its proper divisors (216304).

240536 is a wasteful number, since it uses less digits than its factorization.

240536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 240536 is about 490.4446961687. Note that the first 3 decimals coincide. The cubic root of 240536 is about 62.1908789609.

Adding to 240536 its reverse (635042), we get a palindrome (875578).

The spelling of 240536 in words is "two hundred forty thousand, five hundred thirty-six".