385372816 has 10 divisors (see below), whose sum is σ = 746659862. Its totient is φ = 192686400.

The previous prime is 385372789. The next prime is 385372829. The reversal of 385372816 is 618273583.

It can be written as a sum of positive squares in only one way, i.e., 250905600 + 134467216 = 15840^2 + 11596^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12042885 + ... + 12042916.

Almost surely, 2^385372816 is an apocalyptic number.

It is an amenable number.

385372816 is a deficient number, since it is larger than the sum of its proper divisors (361287046).

385372816 is a wasteful number, since it uses less digits than its factorization.

385372816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24085809 (or 24085803 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 385372816 is about 19630.9148029326. The cubic root of 385372816 is about 727.7133778901.

The spelling of 385372816 in words is "three hundred eighty-five million, three hundred seventy-two thousand, eight hundred sixteen".