3031938180 has 72 divisors (see below), whose sum is σ = 9223125912. Its totient is φ = 806209536.

The previous prime is 3031938157. The next prime is 3031938187. The reversal of 3031938180 is 818391303.

3031938180 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 77580864 + 2954357316 = 8808^2 + 54354^2 .

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 (3031938187) 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, 39682 + ... + 87398.

It is an arithmetic number, because the mean of its divisors is an integer number (128098971).

Almost surely, 2^3031938180 is an apocalyptic number.

3031938180 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3031938180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4611562956).

3031938180 is an abundant number, since it is smaller than the sum of its proper divisors (6191187732).

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

3031938180 is a wasteful number, since it uses less digits than its factorization.

3031938180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48085 (or 48080 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 3031938180 is about 55063.0382380050. The cubic root of 3031938180 is about 1447.3496062886.

The spelling of 3031938180 in words is "three billion, thirty-one million, nine hundred thirty-eight thousand, one hundred eighty".