236240 has 20 divisors (see below), whose sum is σ = 549444. Its totient is φ = 94464.

The previous prime is 236231. The next prime is 236261. The reversal of 236240 is 42632.

236240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 141376 + 94864 = 376^2 + 308^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a zygodrome in base 3.

It is a congruent number.

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, 1397 + ... + 1556.

2²³⁶²⁴⁰ is an apocalyptic number.

236240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

236240 is an abundant number, since it is smaller than the sum of its proper divisors (313204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

236240 is a wasteful number, since it uses less digits than its factorization.

236240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966 (or 2960 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 236240 is about 486.0452653817. The cubic root of 236240 is about 61.8184072551.

Adding to 236240 its reverse (42632), we get a palindrome (278872).

The spelling of 236240 in words is "two hundred thirty-six thousand, two hundred forty".