3895785378 has 24 divisors (see below), whose sum is σ = 8465928588. Its totient is φ = 1294739712.

The previous prime is 3895785371. The next prime is 3895785409. The reversal of 3895785378 is 8735875983.

3895785378 is a `hidden beast` number, since 3 + 8 + 9 + 578 + 53 + 7 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3870955089 + 24830289 = 62217^2 + 4983^2 .

It is a super-2 number, since 2×3895785378² = 30354287422877205768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3895785371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315051 + ... + 327182.

Almost surely, 2^3895785378 is an apocalyptic number.

3895785378 is an abundant number, since it is smaller than the sum of its proper divisors (4570143210).

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

3895785378 is a wasteful number, since it uses less digits than its factorization.

3895785378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642578 (or 642575 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 63.

The square root of 3895785378 is about 62416.2268805156. The cubic root of 3895785378 is about 1573.4936975753.

The spelling of 3895785378 in words is "three billion, eight hundred ninety-five million, seven hundred eighty-five thousand, three hundred seventy-eight".