238685443 has 2 divisors, whose sum is σ = 238685444. Its totient is φ = 238685442.

The previous prime is 238685431. The next prime is 238685449. The reversal of 238685443 is 344586832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238685443 - 2²¹ = 236588291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238685443.

It is not a weakly prime, because it can be changed into another prime (238685449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119342721 + 119342722.

It is an arithmetic number, because the mean of its divisors is an integer number (119342722).

Almost surely, 2^238685443 is an apocalyptic number.

238685443 is a deficient number, since it is larger than the sum of its proper divisors (1).

238685443 is an equidigital number, since it uses as much as digits as its factorization.

238685443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 43.

The square root of 238685443 is about 15449.4479836660. The cubic root of 238685443 is about 620.3098026810.

The spelling of 238685443 in words is "two hundred thirty-eight million, six hundred eighty-five thousand, four hundred forty-three".