1170329728 has 48 divisors (see below), whose sum is σ = 2352912030. Its totient is φ = 579840000.

The previous prime is 1170329717. The next prime is 1170329767. The reversal of 1170329728 is 8279230711.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 643535424 + 526794304 = 25368^2 + 22952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2918328 + ... + 2918728.

Almost surely, 2^1170329728 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 1170329728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1176456015).

1170329728 is an abundant number, since it is smaller than the sum of its proper divisors (1182582302).

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

1170329728 is an frugal number, since it uses more digits than its factorization.

1170329728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 1170329728 is about 34210.0822565512. The cubic root of 1170329728 is about 1053.8272205432.

The spelling of 1170329728 in words is "one billion, one hundred seventy million, three hundred twenty-nine thousand, seven hundred twenty-eight".