1196729856 has 320 divisors, whose sum is σ = 4124736000. Its totient is φ = 335536128.

The previous prime is 1196729819. The next prime is 1196729869. The reversal of 1196729856 is 6589276911.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8031670 + ... + 8031818.

It is an arithmetic number, because the mean of its divisors is an integer number (12889800).

Almost surely, 2^1196729856 is an apocalyptic number.

1196729856 is a gapful number since it is divisible by the number (16) 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 1196729856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2062368000).

1196729856 is an abundant number, since it is smaller than the sum of its proper divisors (2928006144).

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

1196729856 is an equidigital number, since it uses as much as digits as its factorization.

1196729856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 244 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 1196729856 is about 34593.7834877887. The cubic root of 1196729856 is about 1061.6924003017.

The spelling of 1196729856 in words is "one billion, one hundred ninety-six million, seven hundred twenty-nine thousand, eight hundred fifty-six".