385778158 has 16 divisors (see below), whose sum is σ = 584918496. Its totient is φ = 190812160.

The previous prime is 385778137. The next prime is 385778179. The reversal of 385778158 is 851877583.

It is an interprime number because it is at equal distance from previous prime (385778137) and next prime (385778179).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143535 + ... + 146197.

It is an arithmetic number, because the mean of its divisors is an integer number (36557406).

Almost surely, 2^385778158 is an apocalyptic number.

385778158 is a deficient number, since it is larger than the sum of its proper divisors (199140338).

385778158 is a wasteful number, since it uses less digits than its factorization.

385778158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419.

The product of its digits is 1881600, while the sum is 52.

The square root of 385778158 is about 19641.2361627266. The cubic root of 385778158 is about 727.9684291244.

The spelling of 385778158 in words is "three hundred eighty-five million, seven hundred seventy-eight thousand, one hundred fifty-eight".