3949120180 has 24 divisors (see below), whose sum is σ = 8313850440. Its totient is φ = 1575705600.

The previous prime is 3949120169. The next prime is 3949120183. The reversal of 3949120180 is 810219493.

It can be written as a sum of positive squares in 4 ways, for example, as 902521764 + 3046598416 = 30042^2 + 55196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949120183) 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 7 ways as a sum of consecutive naturals, for example, 238185 + ... + 254224.

It is an arithmetic number, because the mean of its divisors is an integer number (346410435).

Almost surely, 2^3949120180 is an apocalyptic number.

It is an amenable number.

3949120180 is an abundant number, since it is smaller than the sum of its proper divisors (4364730260).

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

3949120180 is a wasteful number, since it uses less digits than its factorization.

3949120180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492819 (or 492817 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 3949120180 is about 62842.0255879773. The cubic root of 3949120180 is about 1580.6417544694.

The spelling of 3949120180 in words is "three billion, nine hundred forty-nine million, one hundred twenty thousand, one hundred eighty".