240386 has 4 divisors (see below), whose sum is σ = 360582. Its totient is φ = 120192.

The previous prime is 240379. The next prime is 240421. The reversal of 240386 is 683042.

It is a happy number.

240386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 683042 = 2 ⋅341521.

It can be written as a sum of positive squares in only one way, i.e., 231361 + 9025 = 481^2 + 95^2 .

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60095 + ... + 60098.

2²⁴⁰³⁸⁶ is an apocalyptic number.

240386 is a deficient number, since it is larger than the sum of its proper divisors (120196).

240386 is a wasteful number, since it uses less digits than its factorization.

240386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120195.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 240386 is about 490.2917498796. The cubic root of 240386 is about 62.1779487111.

It can be divided in two parts, 240 and 386, that added together give a palindrome (626).

The spelling of 240386 in words is "two hundred forty thousand, three hundred eighty-six".