385675664 has 20 divisors (see below), whose sum is σ = 815178480. Its totient is φ = 175307040.

The previous prime is 385675663. The next prime is 385675711. The reversal of 385675664 is 466576583.

It is not an unprimeable number, because it can be changed into a prime (385675663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095494 + ... + 1095845.

It is an arithmetic number, because the mean of its divisors is an integer number (40758924).

Almost surely, 2^385675664 is an apocalyptic number.

It is an amenable number.

385675664 is an abundant number, since it is smaller than the sum of its proper divisors (429502816).

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

385675664 is a wasteful number, since it uses less digits than its factorization.

385675664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191358 (or 2191352 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 50.

The square root of 385675664 is about 19638.6268359068. The cubic root of 385675664 is about 727.9039542414.

The spelling of 385675664 in words is "three hundred eighty-five million, six hundred seventy-five thousand, six hundred sixty-four".