238380253 has 4 divisors (see below), whose sum is σ = 242288188. Its totient is φ = 234472320.

The previous prime is 238380223. The next prime is 238380293. The reversal of 238380253 is 352083832.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3003289 + 235376964 = 1733^2 + 15342^2 .

It is a cyclic number.

It is not a de Polignac number, because 238380253 - 2⁵ = 238380221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238380223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1953876 + ... + 1953997.

It is an arithmetic number, because the mean of its divisors is an integer number (60572047).

Almost surely, 2^238380253 is an apocalyptic number.

It is an amenable number.

238380253 is a deficient number, since it is larger than the sum of its proper divisors (3907935).

238380253 is an equidigital number, since it uses as much as digits as its factorization.

238380253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907934.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 238380253 is about 15439.5677724475. The cubic root of 238380253 is about 620.0453079966.

The spelling of 238380253 in words is "two hundred thirty-eight million, three hundred eighty thousand, two hundred fifty-three".