1196209980 has 288 divisors, whose sum is σ = 4518259200. Its totient is φ = 249951744.

The previous prime is 1196209979. The next prime is 1196210003. The reversal of 1196209980 is 899026911.

1196209980 is a `hidden beast` number, since 1 + 19 + 620 + 9 + 9 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 693399 + ... + 695121.

It is an arithmetic number, because the mean of its divisors is an integer number (15688400).

Almost surely, 2^1196209980 is an apocalyptic number.

1196209980 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 1196209980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2259129600).

1196209980 is an abundant number, since it is smaller than the sum of its proper divisors (3322049220).

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

1196209980 is a wasteful number, since it uses less digits than its factorization.

1196209980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793 (or 1788 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 1196209980 is about 34586.2686625776. The cubic root of 1196209980 is about 1061.5386400804.

It can be divided in two parts, 119620 and 9980, that added together give a square (129600 = 360²).

The spelling of 1196209980 in words is "one billion, one hundred ninety-six million, two hundred nine thousand, nine hundred eighty".