385585878 has 16 divisors (see below), whose sum is σ = 774107136. Its totient is φ = 128039400.

The previous prime is 385585873. The next prime is 385585903. The reversal of 385585878 is 878585583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385585873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120598 + ... + 123753.

It is an arithmetic number, because the mean of its divisors is an integer number (48381696).

Almost surely, 2^385585878 is an apocalyptic number.

385585878 is an abundant number, since it is smaller than the sum of its proper divisors (388521258).

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

385585878 is a wasteful number, since it uses less digits than its factorization.

385585878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244619.

The product of its digits is 10752000, while the sum is 57.

The square root of 385585878 is about 19636.3407487240. The cubic root of 385585878 is about 727.8474640668.

The spelling of 385585878 in words is "three hundred eighty-five million, five hundred eighty-five thousand, eight hundred seventy-eight".