238279249 has 8 divisors (see below), whose sum is σ = 262867752. Its totient is φ = 214584960.

The previous prime is 238279231. The next prime is 238279253. The reversal of 238279249 is 942972832.

It can be written as a sum of positive squares in 4 ways, for example, as 24681024 + 213598225 = 4968^2 + 14615^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238279249 - 2⁹ = 238278737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238279199 and 238279208.

It is not an unprimeable number, because it can be changed into a prime (238279549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222994 + ... + 224059.

It is an arithmetic number, because the mean of its divisors is an integer number (32858469).

Almost surely, 2^238279249 is an apocalyptic number.

It is an amenable number.

238279249 is a deficient number, since it is larger than the sum of its proper divisors (24588503).

238279249 is a wasteful number, since it uses less digits than its factorization.

238279249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447107.

The product of its digits is 435456, while the sum is 46.

The square root of 238279249 is about 15436.2964794020. The cubic root of 238279249 is about 619.9577225768.

The spelling of 238279249 in words is "two hundred thirty-eight million, two hundred seventy-nine thousand, two hundred forty-nine".