385643272 has 32 divisors (see below), whose sum is σ = 843966720. Its totient is φ = 161758080.

The previous prime is 385643261. The next prime is 385643299. The reversal of 385643272 is 272346583.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70629 + ... + 75892.

It is an arithmetic number, because the mean of its divisors is an integer number (26373960).

Almost surely, 2^385643272 is an apocalyptic number.

It is an amenable number.

385643272 is an abundant number, since it is smaller than the sum of its proper divisors (458323448).

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

385643272 is a wasteful number, since it uses less digits than its factorization.

385643272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146581 (or 146577 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 385643272 is about 19637.8021173450. The cubic root of 385643272 is about 727.8835753520.

The spelling of 385643272 in words is "three hundred eighty-five million, six hundred forty-three thousand, two hundred seventy-two".