240765 has 16 divisors (see below), whose sum is σ = 440448. Its totient is φ = 110016.

The previous prime is 240763. The next prime is 240769. The reversal of 240765 is 567042.

It is a happy number.

It is not a de Polignac number, because 240765 - 2¹ = 240763 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1042 + ... + 1251.

It is an arithmetic number, because the mean of its divisors is an integer number (27528).

2²⁴⁰⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

240765 is a deficient number, since it is larger than the sum of its proper divisors (199683).

240765 is a wasteful number, since it uses less digits than its factorization.

240765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 240765 is about 490.6781022218. The cubic root of 240765 is about 62.2106087783.

The spelling of 240765 in words is "two hundred forty thousand, seven hundred sixty-five".