3156438528 has 120 divisors (see below), whose sum is σ = 9169820088. Its totient is φ = 1045204992.

The previous prime is 3156438487. The next prime is 3156438529. The reversal of 3156438528 is 8258346513.

3156438528 is a `hidden beast` number, since 3 + 1 + 564 + 3 + 85 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3156438529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 721275 + ... + 725637.

Almost surely, 2^3156438528 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 3156438528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4584910044).

3156438528 is an abundant number, since it is smaller than the sum of its proper divisors (6013381560).

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

3156438528 is a wasteful number, since it uses less digits than its factorization.

3156438528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544 (or 4525 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 3156438528 is about 56182.1904877337. The cubic root of 3156438528 is about 1466.8952826364.

The spelling of 3156438528 in words is "three billion, one hundred fifty-six million, four hundred thirty-eight thousand, five hundred twenty-eight".