240515 has 8 divisors (see below), whose sum is σ = 314928. Its totient is φ = 174880.

The previous prime is 240509. The next prime is 240517. The reversal of 240515 is 515042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240515 - 2⁸ = 240259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240493 and 240502.

It is not an unprimeable number, because it can be changed into a prime (240517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2132 + ... + 2241.

It is an arithmetic number, because the mean of its divisors is an integer number (39366).

2²⁴⁰⁵¹⁵ is an apocalyptic number.

240515 is a deficient number, since it is larger than the sum of its proper divisors (74413).

240515 is a wasteful number, since it uses less digits than its factorization.

240515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4389.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 240515 is about 490.4232865597. The cubic root of 240515 is about 62.1890690496.

Adding to 240515 its reverse (515042), we get a palindrome (755557).

The spelling of 240515 in words is "two hundred forty thousand, five hundred fifteen".