3920020178 has 4 divisors (see below), whose sum is σ = 5880030270. Its totient is φ = 1960010088.

The previous prime is 3920020171. The next prime is 3920020183. The reversal of 3920020178 is 8710200293.

3920020178 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2108921929 + 1811098249 = 45923^2 + 42557^2 .

It is a super-4 number, since 4×3920020178⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is not an unprimeable number, because it can be changed into a prime (3920020171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980005043 + ... + 980005046.

Almost surely, 2^3920020178 is an apocalyptic number.

3920020178 is a deficient number, since it is larger than the sum of its proper divisors (1960010092).

3920020178 is a wasteful number, since it uses less digits than its factorization.

3920020178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960010091.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 3920020178 is about 62610.0645104284. The cubic root of 3920020178 is about 1576.7497380247.

The spelling of 3920020178 in words is "three billion, nine hundred twenty million, twenty thousand, one hundred seventy-eight".