1198967280 has 240 divisors, whose sum is σ = 4426038144. Its totient is φ = 267563520.

The previous prime is 1198967269. The next prime is 1198967281. The reversal of 1198967280 is 827698911.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198967281) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 504495 + ... + 506865.

Almost surely, 2^1198967280 is an apocalyptic number.

1198967280 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 1198967280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2213019072).

1198967280 is an abundant number, since it is smaller than the sum of its proper divisors (3227070864).

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

1198967280 is a wasteful number, since it uses less digits than its factorization.

1198967280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444 (or 2431 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 51.

The square root of 1198967280 is about 34626.1069137147. The cubic root of 1198967280 is about 1062.3536403704.

The spelling of 1198967280 in words is "one billion, one hundred ninety-eight million, nine hundred sixty-seven thousand, two hundred eighty".