238085569 has 4 divisors (see below), whose sum is σ = 238749120. Its totient is φ = 237422020.

The previous prime is 238085521. The next prime is 238085609. The reversal of 238085569 is 965580832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238085569 is a prime.

It is a super-2 number, since 2×238085569² = 113369476332107522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238085509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331237 + ... + 331954.

It is an arithmetic number, because the mean of its divisors is an integer number (59687280).

Almost surely, 2^238085569 is an apocalyptic number.

It is an amenable number.

238085569 is a deficient number, since it is larger than the sum of its proper divisors (663551).

238085569 is an equidigital number, since it uses as much as digits as its factorization.

238085569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663550.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 238085569 is about 15430.0216785331. The cubic root of 238085569 is about 619.7897040860.

The spelling of 238085569 in words is "two hundred thirty-eight million, eighty-five thousand, five hundred sixty-nine".