238648331 has 8 divisors (see below), whose sum is σ = 244689984. Its totient is φ = 232617280.

The previous prime is 238648327. The next prime is 238648339. The reversal of 238648331 is 133846832.

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 238648331 - 2² = 238648327 is a prime.

It is a super-2 number, since 2×238648331² = 113906051778171122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238648339) 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, 63065 + ... + 66741.

It is an arithmetic number, because the mean of its divisors is an integer number (30586248).

Almost surely, 2^238648331 is an apocalyptic number.

238648331 is a deficient number, since it is larger than the sum of its proper divisors (6041653).

238648331 is a wasteful number, since it uses less digits than its factorization.

238648331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301.

The product of its digits is 82944, while the sum is 38.

The square root of 238648331 is about 15448.2468584626. The cubic root of 238648331 is about 620.2776513967.

The spelling of 238648331 in words is "two hundred thirty-eight million, six hundred forty-eight thousand, three hundred thirty-one".