1195813872 has 120 divisors (see below), whose sum is σ = 3740104368. Its totient is φ = 353510400.

The previous prime is 1195813807. The next prime is 1195813889. The reversal of 1195813872 is 2783185911.

1195813872 is a `hidden beast` number, since 1 + 195 + 81 + 387 + 2 = 666.

1195813872 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55738 + ... + 74150.

Almost surely, 2^1195813872 is an apocalyptic number.

1195813872 is a gapful number since it is divisible by the number (12) 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 1195813872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1870052184).

1195813872 is an abundant number, since it is smaller than the sum of its proper divisors (2544290496).

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

1195813872 is a wasteful number, since it uses less digits than its factorization.

1195813872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18479 (or 18470 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 1195813872 is about 34580.5418118340. The cubic root of 1195813872 is about 1061.4214559807.

The spelling of 1195813872 in words is "one billion, one hundred ninety-five million, eight hundred thirteen thousand, eight hundred seventy-two".