238866869 has 8 divisors (see below), whose sum is σ = 243168000. Its totient is φ = 234574272.

The previous prime is 238866863. The next prime is 238866893. The reversal of 238866869 is 968668832.

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 238866869 - 2⁴ = 238866853 is a prime.

It is a super-2 number, since 2×238866869² = 114114762211726322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238866863) 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, 86492 + ... + 89210.

It is an arithmetic number, because the mean of its divisors is an integer number (30396000).

Almost surely, 2^238866869 is an apocalyptic number.

It is an amenable number.

238866869 is a deficient number, since it is larger than the sum of its proper divisors (4301131).

238866869 is a wasteful number, since it uses less digits than its factorization.

238866869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267.

The product of its digits is 5971968, while the sum is 56.

The square root of 238866869 is about 15455.3184697049. The cubic root of 238866869 is about 620.4669297387.

The spelling of 238866869 in words is "two hundred thirty-eight million, eight hundred sixty-six thousand, eight hundred sixty-nine".