238985469 has 12 divisors (see below), whose sum is σ = 349361376. Its totient is φ = 157403592.

The previous prime is 238985431. The next prime is 238985497. The reversal of 238985469 is 964589832.

238985469 is a `hidden beast` number, since 2 + 3 + 8 + 98 + 546 + 9 = 666.

It is not a de Polignac number, because 238985469 - 2²¹ = 236888317 is a prime.

It is a super-2 number, since 2×238985469² = 114228108786299922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238985419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159217 + ... + 160710.

It is an arithmetic number, because the mean of its divisors is an integer number (29113448).

Almost surely, 2^238985469 is an apocalyptic number.

It is an amenable number.

238985469 is a deficient number, since it is larger than the sum of its proper divisors (110375907).

238985469 is a wasteful number, since it uses less digits than its factorization.

238985469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320016 (or 320013 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 238985469 is about 15459.1548604702. The cubic root of 238985469 is about 620.5696022756.

The spelling of 238985469 in words is "two hundred thirty-eight million, nine hundred eighty-five thousand, four hundred sixty-nine".