1196431236 has 720 divisors, whose sum is σ = 4671862272. Its totient is φ = 261273600.

The previous prime is 1196431213. The next prime is 1196431289. The reversal of 1196431236 is 6321346911.

1196431236 is a `hidden beast` number, since 1 + 1 + 9 + 643 + 1 + 2 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1196431236.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 38594541 + ... + 38594571.

Almost surely, 2^1196431236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1196431236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2335931136).

1196431236 is an abundant number, since it is smaller than the sum of its proper divisors (3475431036).

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

1196431236 is a wasteful number, since it uses less digits than its factorization.

1196431236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 84 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1196431236 is about 34589.4671251235. The cubic root of 1196431236 is about 1061.6040849209.

The spelling of 1196431236 in words is "one billion, one hundred ninety-six million, four hundred thirty-one thousand, two hundred thirty-six".