1170691328 has 36 divisors (see below), whose sum is σ = 2341933440. Its totient is φ = 584062464.

The previous prime is 1170691309. The next prime is 1170691331. The reversal of 1170691328 is 8231960711.

It is a junction number, because it is equal to n+sod(n) for n = 1170691291 and 1170691300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117851 + ... + 127397.

Almost surely, 2^1170691328 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 1170691328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170966720).

1170691328 is an abundant number, since it is smaller than the sum of its proper divisors (1171242112).

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

1170691328 is an frugal number, since it uses more digits than its factorization.

1170691328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10042 (or 10028 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1170691328 is about 34215.3668400618. The cubic root of 1170691328 is about 1053.9357440001.

The spelling of 1170691328 in words is "one billion, one hundred seventy million, six hundred ninety-one thousand, three hundred twenty-eight".