238632331 has 4 divisors (see below), whose sum is σ = 272722672. Its totient is φ = 204541992.

The previous prime is 238632323. The next prime is 238632431. The reversal of 238632331 is 133236832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238632331 - 2³ = 238632323 is a prime.

It is a super-2 number, since 2×238632331² = 113890778796987122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238632293 and 238632302.

It is not an unprimeable number, because it can be changed into a prime (238632311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17045160 + ... + 17045173.

It is an arithmetic number, because the mean of its divisors is an integer number (68180668).

Almost surely, 2^238632331 is an apocalyptic number.

238632331 is a deficient number, since it is larger than the sum of its proper divisors (34090341).

238632331 is an equidigital number, since it uses as much as digits as its factorization.

238632331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34090340.

The product of its digits is 15552, while the sum is 31.

The square root of 238632331 is about 15447.7289916674. The cubic root of 238632331 is about 620.2637890688.

The spelling of 238632331 in words is "two hundred thirty-eight million, six hundred thirty-two thousand, three hundred thirty-one".