385225869 has 12 divisors (see below), whose sum is σ = 587147936. Its totient is φ = 220077672.

The previous prime is 385225859. The next prime is 385225901. The reversal of 385225869 is 968522583.

It is not a de Polignac number, because 385225869 - 2⁴ = 385225853 is a prime.

It is a super-2 number, since 2×385225869² = 296797940293610322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385225859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87802 + ... + 92084.

Almost surely, 2^385225869 is an apocalyptic number.

It is an amenable number.

385225869 is a deficient number, since it is larger than the sum of its proper divisors (201922067).

385225869 is an frugal number, since it uses more digits than its factorization.

385225869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576 (or 4293 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The square root of 385225869 is about 19627.1717014959. The cubic root of 385225869 is about 727.6208710257.

The spelling of 385225869 in words is "three hundred eighty-five million, two hundred twenty-five thousand, eight hundred sixty-nine".