1199871232 has 108 divisors (see below), whose sum is σ = 2855261556. Its totient is φ = 501473280.

The previous prime is 1199871227. The next prime is 1199871241. The reversal of 1199871232 is 2321789911.

It can be written as a sum of positive squares in 2 ways, for example, as 202322176 + 997549056 = 14224^2 + 31584^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 513138 + ... + 515470.

It is an arithmetic number, because the mean of its divisors is an integer number (26437607).

Almost surely, 2^1199871232 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 1199871232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427630778).

1199871232 is an abundant number, since it is smaller than the sum of its proper divisors (1655390324).

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

1199871232 is an equidigital number, since it uses as much as digits as its factorization.

1199871232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2383 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 1199871232 is about 34639.1574955281. The cubic root of 1199871232 is about 1062.6205577067.

The spelling of 1199871232 in words is "one billion, one hundred ninety-nine million, eight hundred seventy-one thousand, two hundred thirty-two".