240824 has 8 divisors (see below), whose sum is σ = 451560. Its totient is φ = 120408.

The previous prime is 240811. The next prime is 240829. The reversal of 240824 is 428042.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 240796 and 240805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15044 + ... + 15059.

It is an arithmetic number, because the mean of its divisors is an integer number (56445).

2²⁴⁰⁸²⁴ is an apocalyptic number.

It is an amenable number.

240824 is a deficient number, since it is larger than the sum of its proper divisors (210736).

240824 is a wasteful number, since it uses less digits than its factorization.

240824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30109 (or 30105 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 240824 is about 490.7382194205. The cubic root of 240824 is about 62.2156899794.

Adding to 240824 its reverse (428042), we get a palindrome (668866).

The spelling of 240824 in words is "two hundred forty thousand, eight hundred twenty-four".