238888649 has 8 divisors (see below), whose sum is σ = 253979712. Its totient is φ = 224189680.

The previous prime is 238888589. The next prime is 238888669. The reversal of 238888649 is 946888832.

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 238888649 - 2¹² = 238884553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238888594 and 238888603.

It is not an unprimeable number, because it can be changed into a prime (238888669) 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, 96767 + ... + 99204.

It is an arithmetic number, because the mean of its divisors is an integer number (31747464).

Almost surely, 2^238888649 is an apocalyptic number.

It is an amenable number.

238888649 is a deficient number, since it is larger than the sum of its proper divisors (15091063).

238888649 is a wasteful number, since it uses less digits than its factorization.

238888649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196047.

The product of its digits is 5308416, while the sum is 56.

The square root of 238888649 is about 15456.0230654590. The cubic root of 238888649 is about 620.4857873268.

The spelling of 238888649 in words is "two hundred thirty-eight million, eight hundred eighty-eight thousand, six hundred forty-nine".