240424 has 16 divisors (see below), whose sum is σ = 462420. Its totient is φ = 117120.

The previous prime is 240421. The next prime is 240433. The reversal of 240424 is 424042.

240424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 240100 + 324 = 490^2 + 18^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 240398 and 240407.

It is not an unprimeable number, because it can be changed into a prime (240421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39 + ... + 694.

2²⁴⁰⁴²⁴ is an apocalyptic number.

It is an amenable number.

240424 is a deficient number, since it is larger than the sum of its proper divisors (221996).

240424 is a wasteful number, since it uses less digits than its factorization.

240424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 240424 is about 490.3305007849. The cubic root of 240424 is about 62.1812248830.

Adding to 240424 its reverse (424042), we get a palindrome (664466).

The spelling of 240424 in words is "two hundred forty thousand, four hundred twenty-four", and thus it is an iban number.