1169640912 has 160 divisors (see below), whose sum is σ = 3582627840. Its totient is φ = 324864000.

The previous prime is 1169640883. The next prime is 1169640949. The reversal of 1169640912 is 2190469611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309112 + ... + 312872.

It is an arithmetic number, because the mean of its divisors is an integer number (22391424).

Almost surely, 2^1169640912 is an apocalyptic number.

1169640912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1169640912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791313920).

1169640912 is an abundant number, since it is smaller than the sum of its proper divisors (2412986928).

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

1169640912 is a wasteful number, since it uses less digits than its factorization.

1169640912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833 (or 3827 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 1169640912 is about 34200.0133333307. The cubic root of 1169640912 is about 1053.6204310969.

The spelling of 1169640912 in words is "one billion, one hundred sixty-nine million, six hundred forty thousand, nine hundred twelve".