1129696080 has 80 divisors (see below), whose sum is σ = 3509448000. Its totient is φ = 300616704.

The previous prime is 1129696063. The next prime is 1129696093. The reversal of 1129696080 is 806969211.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 115044 + ... + 124476.

It is an arithmetic number, because the mean of its divisors is an integer number (43868100).

Almost surely, 2^1129696080 is an apocalyptic number.

1129696080 is a gapful number since it is divisible by the number (10) 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 1129696080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1754724000).

1129696080 is an abundant number, since it is smaller than the sum of its proper divisors (2379751920).

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

1129696080 is a wasteful number, since it uses less digits than its factorization.

1129696080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9948 (or 9942 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 1129696080 is about 33610.9517865829. The cubic root of 1129696080 is about 1041.4870492503.

The spelling of 1129696080 in words is "one billion, one hundred twenty-nine million, six hundred ninety-six thousand, eighty".