240915 has 8 divisors (see below), whose sum is σ = 385488. Its totient is φ = 128480.

The previous prime is 240913. The next prime is 240943. The reversal of 240915 is 519042.

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

It is not a de Polignac number, because 240915 - 2¹ = 240913 is a prime.

240915 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 240891 and 240900.

It is not an unprimeable number, because it can be changed into a prime (240913) 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, 8016 + ... + 8045.

It is an arithmetic number, because the mean of its divisors is an integer number (48186).

2²⁴⁰⁹¹⁵ is an apocalyptic number.

240915 is a deficient number, since it is larger than the sum of its proper divisors (144573).

240915 is a wasteful number, since it uses less digits than its factorization.

240915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16069.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 240915 is about 490.8309281209. The cubic root of 240915 is about 62.2235254593.

Adding to 240915 its reverse (519042), we get a palindrome (759957).

The spelling of 240915 in words is "two hundred forty thousand, nine hundred fifteen".