1196881272 has 80 divisors (see below), whose sum is σ = 3468029400. Its totient is φ = 385197120.

The previous prime is 1196881271. The next prime is 1196881303. The reversal of 1196881272 is 2721886911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1196881271) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13054 + ... + 50637.

Almost surely, 2^1196881272 is an apocalyptic number.

1196881272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1196881272 is an abundant number, since it is smaller than the sum of its proper divisors (2271148128).

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

1196881272 is a wasteful number, since it uses less digits than its factorization.

1196881272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63738 (or 63725 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 1196881272 is about 34595.9719042550. The cubic root of 1196881272 is about 1061.7371752179.

The spelling of 1196881272 in words is "one billion, one hundred ninety-six million, eight hundred eighty-one thousand, two hundred seventy-two".