238210649 has 2 divisors, whose sum is σ = 238210650. Its totient is φ = 238210648.

The previous prime is 238210559. The next prime is 238210691. The reversal of 238210649 is 946012832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166926400 + 71284249 = 12920^2 + 8443^2 .

It is a cyclic number.

It is not a de Polignac number, because 238210649 - 2¹⁶ = 238145113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238210949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119105324 + 119105325.

It is an arithmetic number, because the mean of its divisors is an integer number (119105325).

Almost surely, 2^238210649 is an apocalyptic number.

It is an amenable number.

238210649 is a deficient number, since it is larger than the sum of its proper divisors (1).

238210649 is an equidigital number, since it uses as much as digits as its factorization.

238210649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 238210649 is about 15434.0742838694. The cubic root of 238210649 is about 619.8982221070.

It can be divided in two parts, 2382 and 10649, that added together give a palindrome (13031).

The spelling of 238210649 in words is "two hundred thirty-eight million, two hundred ten thousand, six hundred forty-nine".