3905984181 has 12 divisors (see below), whose sum is σ = 5724473216. Its totient is φ = 2367262920.

The previous prime is 3905984179. The next prime is 3905984197. The reversal of 3905984181 is 1814895093.

3905984181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3905984181 - 2¹ = 3905984179 is a prime.

It is a super-2 number, since 2×3905984181² = 30513424844444481522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3905984181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905984101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5379781 + ... + 5380506.

Almost surely, 2^3905984181 is an apocalyptic number.

It is an amenable number.

3905984181 is a deficient number, since it is larger than the sum of its proper divisors (1818489035).

3905984181 is a wasteful number, since it uses less digits than its factorization.

3905984181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10760312 (or 10760301 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 3905984181 is about 62497.8734118210. The cubic root of 3905984181 is about 1574.8655877232.

The spelling of 3905984181 in words is "three billion, nine hundred five million, nine hundred eighty-four thousand, one hundred eighty-one".