238052831 has 4 divisors (see below), whose sum is σ = 238865592. Its totient is φ = 237240072.

The previous prime is 238052797. The next prime is 238052863. The reversal of 238052831 is 138250832.

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 238052831 - 2²⁶ = 170943967 is a prime.

It is a super-2 number, since 2×238052831² = 113338300694229122, 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 (238052891) 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, 405941 + ... + 406526.

It is an arithmetic number, because the mean of its divisors is an integer number (59716398).

Almost surely, 2^238052831 is an apocalyptic number.

238052831 is a deficient number, since it is larger than the sum of its proper divisors (812761).

238052831 is an equidigital number, since it uses as much as digits as its factorization.

238052831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812760.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 238052831 is about 15428.9607880764. The cubic root of 238052831 is about 619.7612946847.

The spelling of 238052831 in words is "two hundred thirty-eight million, fifty-two thousand, eight hundred thirty-one".