240353 has 2 divisors, whose sum is σ = 240354. Its totient is φ = 240352.

The previous prime is 240349. The next prime is 240371. The reversal of 240353 is 353042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238144 + 2209 = 488^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 240353 - 2² = 240349 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 2³ + 4⁵ + 3¹⁰ + 0 + 5⁵ + 3¹¹ .

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (240853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120176 + 120177.

It is an arithmetic number, because the mean of its divisors is an integer number (120177).

2²⁴⁰³⁵³ is an apocalyptic number.

It is an amenable number.

240353 is a deficient number, since it is larger than the sum of its proper divisors (1).

240353 is an equidigital number, since it uses as much as digits as its factorization.

240353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 240353 is about 490.2580952927. The cubic root of 240353 is about 62.1751033344.

Adding to 240353 its reverse (353042), we get a palindrome (593395).

The spelling of 240353 in words is "two hundred forty thousand, three hundred fifty-three".