238352431 has 4 divisors (see below), whose sum is σ = 238477672. Its totient is φ = 238227192.

The previous prime is 238352419. The next prime is 238352441. The reversal of 238352431 is 134253832.

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 238352431 - 2⁵ = 238352399 is a prime.

It is a super-2 number, since 2×238352431² = 113623762727219522, 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 = 238352393 and 238352402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238352441) 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, 59721 + ... + 63586.

It is an arithmetic number, because the mean of its divisors is an integer number (59619418).

Almost surely, 2^238352431 is an apocalyptic number.

238352431 is a deficient number, since it is larger than the sum of its proper divisors (125241).

238352431 is a wasteful number, since it uses less digits than its factorization.

238352431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125240.

The product of its digits is 17280, while the sum is 31.

The square root of 238352431 is about 15438.6667494314. Note that the first 3 decimals coincide. The cubic root of 238352431 is about 620.0211846733.

The spelling of 238352431 in words is "two hundred thirty-eight million, three hundred fifty-two thousand, four hundred thirty-one".