1197709380 has 144 divisors (see below), whose sum is σ = 4220396544. Its totient is φ = 269256960.

The previous prime is 1197709379. The next prime is 1197709411. The reversal of 1197709380 is 839077911.

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 (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69069 + ... + 84651.

Almost surely, 2^1197709380 is an apocalyptic number.

1197709380 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 1197709380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2110198272).

1197709380 is an abundant number, since it is smaller than the sum of its proper divisors (3022687164).

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

1197709380 is a wasteful number, since it uses less digits than its factorization.

1197709380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15666 (or 15661 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The square root of 1197709380 is about 34607.9381067408. The cubic root of 1197709380 is about 1061.9819865650.

The spelling of 1197709380 in words is "one billion, one hundred ninety-seven million, seven hundred nine thousand, three hundred eighty".