3156049728 has 168 divisors, whose sum is σ = 10315593288. Its totient is φ = 913932288.

The previous prime is 3156049697. The next prime is 3156049733. The reversal of 3156049728 is 8279406513.

3156049728 is a `hidden beast` number, since 3 + 15 + 604 + 9 + 7 + 28 = 666.

3156049728 is digitally balanced in base 10, because in such base 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 1191078144 + 1964971584 = 34512^2 + 44328^2 .

3156049728 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 114900 + ... + 139692.

It is an arithmetic number, because the mean of its divisors is an integer number (61402341).

It is a 1-persistent number, because it is pandigital, but 2⋅3156049728 = 6312099456 is not.

Almost surely, 2^3156049728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3156049728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5157796644).

3156049728 is an abundant number, since it is smaller than the sum of its proper divisors (7159543560).

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

3156049728 is a wasteful number, since it uses less digits than its factorization.

3156049728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24841 (or 24828 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 3156049728 is about 56178.7302099291. The cubic root of 3156049728 is about 1466.8350510072.

The spelling of 3156049728 in words is "three billion, one hundred fifty-six million, forty-nine thousand, seven hundred twenty-eight".