238488652609 has 3 divisors (see below), whose sum is σ = 238489140963. Its totient is φ = 238488164256.

The previous prime is 238488652579. The next prime is 238488652637. The reversal of 238488652609 is 906256884832.

The square root of 238488652609 is 488353.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 207557692225 + 30930960384 = 455585^2 + 175872^2 .

It is a de Polignac number, because none of the positive numbers 2^k-238488652609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238488658609) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 244177 + ... + 732529.

It is an arithmetic number, because the mean of its divisors is an integer number (79496380321).

Almost surely, 2^238488652609 is an apocalyptic number.

238488652609 is the 488353-rd square number.

238488652609 is the 244177-th centered octagonal number.

It is an amenable number.

238488652609 is a deficient number, since it is larger than the sum of its proper divisors (488354).

238488652609 is an frugal number, since it uses more digits than its factorization.

238488652609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976706 (or 488353 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 61.

The spelling of 238488652609 in words is "two hundred thirty-eight billion, four hundred eighty-eight million, six hundred fifty-two thousand, six hundred nine".