3871422180 has 72 divisors (see below), whose sum is σ = 11818198392. Its totient is φ = 1025796096.

The previous prime is 3871422161. The next prime is 3871422187. The reversal of 3871422180 is 812241783.

3871422180 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 818417664 + 3053004516 = 28608^2 + 55254^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3871422187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40237 + ... + 96756.

Almost surely, 2^3871422180 is an apocalyptic number.

3871422180 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3871422180 is an abundant number, since it is smaller than the sum of its proper divisors (7946776212).

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

3871422180 is a wasteful number, since it uses less digits than its factorization.

3871422180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137165 (or 137160 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 3871422180 is about 62220.7536116367. The cubic root of 3871422180 is about 1570.2067668231.

The spelling of 3871422180 in words is "three billion, eight hundred seventy-one million, four hundred twenty-two thousand, one hundred eighty".