1199992080 has 160 divisors (see below), whose sum is σ = 4331937024. Its totient is φ = 269088768.

The previous prime is 1199992033. The next prime is 1199992081. The reversal of 1199992080 is 802999911.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1199992081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82302 + ... + 95778.

Almost surely, 2^1199992080 is an apocalyptic number.

1199992080 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 1199992080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2165968512).

1199992080 is an abundant number, since it is smaller than the sum of its proper divisors (3131944944).

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

1199992080 is a wasteful number, since it uses less digits than its factorization.

1199992080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13553 (or 13547 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 48.

The square root of 1199992080 is about 34640.9018358356. The cubic root of 1199992080 is about 1062.6562313286.

The spelling of 1199992080 in words is "one billion, one hundred ninety-nine million, nine hundred ninety-two thousand, eighty".