385327820 has 24 divisors (see below), whose sum is σ = 822906000. Its totient is φ = 151518272.

The previous prime is 385327819. The next prime is 385327829. The reversal of 385327820 is 28723583.

It is not an unprimeable number, because it can be changed into a prime (385327829) 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 7 ways as a sum of consecutive naturals, for example, 162095 + ... + 164454.

It is an arithmetic number, because the mean of its divisors is an integer number (34287750).

Almost surely, 2^385327820 is an apocalyptic number.

It is an amenable number.

385327820 is an abundant number, since it is smaller than the sum of its proper divisors (437578180).

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

385327820 is a wasteful number, since it uses less digits than its factorization.

385327820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326617 (or 326615 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 385327820 is about 19629.7687199824. The cubic root of 385327820 is about 727.6850542648.

The spelling of 385327820 in words is "three hundred eighty-five million, three hundred twenty-seven thousand, eight hundred twenty".