1197632320 has 112 divisors (see below), whose sum is σ = 3178820160. Its totient is φ = 427106304.

The previous prime is 1197632297. The next prime is 1197632323. The reversal of 1197632320 is 232367911.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197632323) 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 15 ways as a sum of consecutive naturals, for example, 97567 + ... + 109153.

Almost surely, 2^1197632320 is an apocalyptic number.

1197632320 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 1197632320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589410080).

1197632320 is an abundant number, since it is smaller than the sum of its proper divisors (1981187840).

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

1197632320 is a wasteful number, since it uses less digits than its factorization.

1197632320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640 (or 11630 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 1197632320 is about 34606.8247604428. The cubic root of 1197632320 is about 1061.9592102865.

The spelling of 1197632320 in words is "one billion, one hundred ninety-seven million, six hundred thirty-two thousand, three hundred twenty".