240778 has 8 divisors (see below), whose sum is σ = 364320. Its totient is φ = 119340.

The previous prime is 240769. The next prime is 240797. The reversal of 240778 is 877042.

240778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198 + ... + 721.

It is an arithmetic number, because the mean of its divisors is an integer number (45540).

2²⁴⁰⁷⁷⁸ is an apocalyptic number.

240778 is a deficient number, since it is larger than the sum of its proper divisors (123542).

240778 is a wasteful number, since it uses less digits than its factorization.

240778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 240778 is about 490.6913490169. The cubic root of 240778 is about 62.2117284363.

It can be divided in two parts, 2407 and 78, that added together give a triangular number (2485 = T₇₀).

The spelling of 240778 in words is "two hundred forty thousand, seven hundred seventy-eight".