1196839872 has 84 divisors (see below), whose sum is σ = 3457748736. Its totient is φ = 395781120.

The previous prime is 1196839867. The next prime is 1196839873. The reversal of 1196839872 is 2789386911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1196839873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64972 + ... + 81332.

Almost surely, 2^1196839872 is an apocalyptic number.

1196839872 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 1196839872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1728874368).

1196839872 is an abundant number, since it is smaller than the sum of its proper divisors (2260908864).

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

1196839872 is a wasteful number, since it uses less digits than its factorization.

1196839872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16506 (or 16493 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 1196839872 is about 34595.3735635272. The cubic root of 1196839872 is about 1061.7249332835.

The spelling of 1196839872 in words is "one billion, one hundred ninety-six million, eight hundred thirty-nine thousand, eight hundred seventy-two".