238346217 has 12 divisors (see below), whose sum is σ = 359246784. Its totient is φ = 151988760.

The previous prime is 238346201. The next prime is 238346221. The reversal of 238346217 is 712643832.

It is a happy number.

238346217 is a `hidden beast` number, since 23 + 8 + 3 + 4 + 621 + 7 = 666.

It is not a de Polignac number, because 238346217 - 2⁴ = 238346201 is a prime.

It is a super-2 number, since 2×238346217² = 113617838316422178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238346257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575509 + ... + 575922.

It is an arithmetic number, because the mean of its divisors is an integer number (29937232).

Almost surely, 2^238346217 is an apocalyptic number.

It is an amenable number.

238346217 is a deficient number, since it is larger than the sum of its proper divisors (120900567).

238346217 is a wasteful number, since it uses less digits than its factorization.

238346217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151460 (or 1151457 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 238346217 is about 15438.4655001720. The cubic root of 238346217 is about 620.0157965105.

The spelling of 238346217 in words is "two hundred thirty-eight million, three hundred forty-six thousand, two hundred seventeen".