238039013 has 4 divisors (see below), whose sum is σ = 243574848. Its totient is φ = 232503180.

The previous prime is 238039001. The next prime is 238039037. The reversal of 238039013 is 310930832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 238039013 - 2¹² = 238034917 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 (238039063) 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, 2767853 + ... + 2767938.

It is an arithmetic number, because the mean of its divisors is an integer number (60893712).

Almost surely, 2^238039013 is an apocalyptic number.

It is an amenable number.

238039013 is a deficient number, since it is larger than the sum of its proper divisors (5535835).

238039013 is an equidigital number, since it uses as much as digits as its factorization.

238039013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535834.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 238039013 is about 15428.5129873232. The cubic root of 238039013 is about 619.7493029106.

Adding to 238039013 its reverse (310930832), we get a palindrome (548969845).

The spelling of 238039013 in words is "two hundred thirty-eight million, thirty-nine thousand, thirteen".