1168729770 has 128 divisors (see below), whose sum is σ = 3213665280. Its totient is φ = 269475840.

The previous prime is 1168729769. The next prime is 1168729799. The reversal of 1168729770 is 779278611.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2711455 + ... + 2711885.

It is an arithmetic number, because the mean of its divisors is an integer number (25106760).

Almost surely, 2^1168729770 is an apocalyptic number.

1168729770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1168729770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606832640).

1168729770 is an abundant number, since it is smaller than the sum of its proper divisors (2044935510).

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

1168729770 is a wasteful number, since it uses less digits than its factorization.

1168729770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880.

The product of its (nonzero) digits is 296352, while the sum is 48.

The square root of 1168729770 is about 34186.6899538402. The cubic root of 1168729770 is about 1053.3467724033.

The spelling of 1168729770 in words is "one billion, one hundred sixty-eight million, seven hundred twenty-nine thousand, seven hundred seventy".