240437 has 2 divisors, whose sum is σ = 240438. Its totient is φ = 240436.

The previous prime is 240433. The next prime is 240473. The reversal of 240437 is 734042.

It is a happy number.

Together with next prime (240473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128881 + 111556 = 359^2 + 334^2 .

It is a cyclic number.

It is not a de Polignac number, because 240437 - 2² = 240433 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120218 + 120219.

It is an arithmetic number, because the mean of its divisors is an integer number (120219).

2²⁴⁰⁴³⁷ is an apocalyptic number.

It is an amenable number.

240437 is a deficient number, since it is larger than the sum of its proper divisors (1).

240437 is an equidigital number, since it uses as much as digits as its factorization.

240437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 240437 is about 490.3437569706. The cubic root of 240437 is about 62.1823455994.

Adding to 240437 its reverse (734042), we get a palindrome (974479).

The spelling of 240437 in words is "two hundred forty thousand, four hundred thirty-seven".