1198741680 has 200 divisors, whose sum is σ = 4307648400. Its totient is φ = 308593152.

The previous prime is 1198741667. The next prime is 1198741681. The reversal of 1198741680 is 861478911.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1198741681) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 184731 + ... + 191109.

It is an arithmetic number, because the mean of its divisors is an integer number (21538242).

Almost surely, 2^1198741680 is an apocalyptic number.

1198741680 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 1198741680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2153824200).

1198741680 is an abundant number, since it is smaller than the sum of its proper divisors (3108906720).

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

1198741680 is a wasteful number, since it uses less digits than its factorization.

1198741680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433 (or 6418 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 1198741680 is about 34622.8491028685. The cubic root of 1198741680 is about 1062.2870046863.

The spelling of 1198741680 in words is "one billion, one hundred ninety-eight million, seven hundred forty-one thousand, six hundred eighty".