238383613 has 4 divisors (see below), whose sum is σ = 256720828. Its totient is φ = 220046400.

The previous prime is 238383601. The next prime is 238383631. The reversal of 238383613 is 316383832.

238383613 = 10917² + 10918².

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 119180889 + 119202724 = 10917^2 + 10918^2 .

It is a cyclic number.

It is not a de Polignac number, because 238383613 - 2²⁵ = 204829181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238383653) 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, 9168588 + ... + 9168613.

It is an arithmetic number, because the mean of its divisors is an integer number (64180207).

Almost surely, 2^238383613 is an apocalyptic number.

238383613 is the 10918-th centered square number.

It is an amenable number.

238383613 is a deficient number, since it is larger than the sum of its proper divisors (18337215).

238383613 is a wasteful number, since it uses less digits than its factorization.

238383613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18337214.

The product of its digits is 62208, while the sum is 37.

The square root of 238383613 is about 15439.6765834003. The cubic root of 238383613 is about 620.0482211887.

The spelling of 238383613 in words is "two hundred thirty-eight million, three hundred eighty-three thousand, six hundred thirteen".