1199960880 has 160 divisors (see below), whose sum is σ = 3832254720. Its totient is φ = 310471680.

The previous prime is 1199960851. The next prime is 1199960893. The reversal of 1199960880 is 880699911.

It is a happy number.

1199960880 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1199960880² = 2879812227060748800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1174770 + ... + 1175790.

It is an arithmetic number, because the mean of its divisors is an integer number (23951592).

Almost surely, 2^1199960880 is an apocalyptic number.

1199960880 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 1199960880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1916127360).

1199960880 is an abundant number, since it is smaller than the sum of its proper divisors (2632293840).

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

1199960880 is a wasteful number, since it uses less digits than its factorization.

1199960880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1173 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 51.

The square root of 1199960880 is about 34640.4514982123. The cubic root of 1199960880 is about 1062.6470215007.

The spelling of 1199960880 in words is "one billion, one hundred ninety-nine million, nine hundred sixty thousand, eight hundred eighty".