385680252 has 12 divisors (see below), whose sum is σ = 899920616. Its totient is φ = 128560080.

The previous prime is 385680223. The next prime is 385680263. The reversal of 385680252 is 252086583.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 385680252.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16069999 + ... + 16070022.

Almost surely, 2^385680252 is an apocalyptic number.

It is an amenable number.

385680252 is an abundant number, since it is smaller than the sum of its proper divisors (514240364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385680252 is a wasteful number, since it uses less digits than its factorization.

385680252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32140028 (or 32140026 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 385680252 is about 19638.7436461704. The cubic root of 385680252 is about 727.9068406132.

The spelling of 385680252 in words is "three hundred eighty-five million, six hundred eighty thousand, two hundred fifty-two".