1197946880 has 96 divisors (see below), whose sum is σ = 3095820000. Its totient is φ = 442269696.

The previous prime is 1197946879. The next prime is 1197946889. The reversal of 1197946880 is 886497911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197946889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128621 + ... + 137619.

It is an arithmetic number, because the mean of its divisors is an integer number (32248125).

Almost surely, 2^1197946880 is an apocalyptic number.

1197946880 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 1197946880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547910000).

1197946880 is an abundant number, since it is smaller than the sum of its proper divisors (1897873120).

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

1197946880 is an equidigital number, since it uses as much as digits as its factorization.

1197946880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039 (or 9019 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 53.

The square root of 1197946880 is about 34611.3692303555. The cubic root of 1197946880 is about 1062.0521772296.

The spelling of 1197946880 in words is "one billion, one hundred ninety-seven million, nine hundred forty-six thousand, eight hundred eighty".