238979049 has 4 divisors (see below), whose sum is σ = 318638736. Its totient is φ = 159319364.

The previous prime is 238979011. The next prime is 238979051. The reversal of 238979049 is 940979832.

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 238979049 - 2⁷ = 238978921 is a prime.

It is a super-2 number, since 2×238979049² = 114221971721888802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 238978992 and 238979010.

It is not an unprimeable number, because it can be changed into a prime (238979089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39829839 + ... + 39829844.

It is an arithmetic number, because the mean of its divisors is an integer number (79659684).

Almost surely, 2^238979049 is an apocalyptic number.

It is an amenable number.

238979049 is a deficient number, since it is larger than the sum of its proper divisors (79659687).

238979049 is an equidigital number, since it uses as much as digits as its factorization.

238979049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79659686.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 238979049 is about 15458.9472151243. The cubic root of 238979049 is about 620.5640453234.

The spelling of 238979049 in words is "two hundred thirty-eight million, nine hundred seventy-nine thousand, forty-nine".