1197394380 has 432 divisors, whose sum is σ = 4747206240. Its totient is φ = 248355072.

The previous prime is 1197394277. The next prime is 1197394397. The reversal of 1197394380 is 834937911.

1197394380 is a `hidden beast` number, since 119 + 73 + 94 + 380 = 666.

1197394380 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 20294791 + ... + 20294849.

Almost surely, 2^1197394380 is an apocalyptic number.

1197394380 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 1197394380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2373603120).

1197394380 is an abundant number, since it is smaller than the sum of its proper divisors (3549811860).

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

1197394380 is a wasteful number, since it uses less digits than its factorization.

1197394380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1197394380 is about 34603.3868284594. The cubic root of 1197394380 is about 1061.8888772619. Note that the first 4 decimals are identical.

The spelling of 1197394380 in words is "one billion, one hundred ninety-seven million, three hundred ninety-four thousand, three hundred eighty".