3471229728 has 168 divisors, whose sum is σ = 10850250348. Its totient is φ = 1088888832.

The previous prime is 3471229687. The next prime is 3471229799. The reversal of 3471229728 is 8279221743.

3471229728 is a `hidden beast` number, since 347 + 12 + 297 + 2 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3045715344 + 425514384 = 55188^2 + 20628^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 392200 + ... + 400952.

Almost surely, 2^3471229728 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 3471229728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5425125174).

3471229728 is an abundant number, since it is smaller than the sum of its proper divisors (7379020620).

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

3471229728 is an equidigital number, since it uses as much as digits as its factorization.

3471229728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798 (or 8775 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 3471229728 is about 58917.1429042516. The cubic root of 3471229728 is about 1514.1228684093.

The spelling of 3471229728 in words is "three billion, four hundred seventy-one million, two hundred twenty-nine thousand, seven hundred twenty-eight".