3157229328 has 80 divisors (see below), whose sum is σ = 8931124800. Its totient is φ = 953136640.

The previous prime is 3157229311. The next prime is 3157229357. The reversal of 3157229328 is 8239227513.

It is a self number, because there is not a number n which added to its sum of digits gives 3157229328.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130918 + ... + 153146.

It is an arithmetic number, because the mean of its divisors is an integer number (111639060).

Almost surely, 2^3157229328 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 3157229328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4465562400).

3157229328 is an abundant number, since it is smaller than the sum of its proper divisors (5773895472).

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

3157229328 is a wasteful number, since it uses less digits than its factorization.

3157229328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22520 (or 22514 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 3157229328 is about 56189.2278644226. The cubic root of 3157229328 is about 1467.0177755365.

The spelling of 3157229328 in words is "three billion, one hundred fifty-seven million, two hundred twenty-nine thousand, three hundred twenty-eight".