385773776 has 20 divisors (see below), whose sum is σ = 773211300. Its totient is φ = 186235392.

The previous prime is 385773763. The next prime is 385773811. The reversal of 385773776 is 677377583.

It can be written as a sum of positive squares in 2 ways, for example, as 218330176 + 167443600 = 14776^2 + 12940^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415241 + ... + 416168.

It is an arithmetic number, because the mean of its divisors is an integer number (38660565).

Almost surely, 2^385773776 is an apocalyptic number.

It is an amenable number.

385773776 is an abundant number, since it is smaller than the sum of its proper divisors (387437524).

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

385773776 is a wasteful number, since it uses less digits than its factorization.

385773776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831446 (or 831440 counting only the distinct ones).

The product of its digits is 5186160, while the sum is 53.

The square root of 385773776 is about 19641.1246113862. The cubic root of 385773776 is about 727.9656728169.

The spelling of 385773776 in words is "three hundred eighty-five million, seven hundred seventy-three thousand, seven hundred seventy-six".