1198489472 has 64 divisors (see below), whose sum is σ = 2472724800. Its totient is φ = 578248704.

The previous prime is 1198489423. The next prime is 1198489489. The reversal of 1198489472 is 2749848911.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437804 + ... + 440532.

It is an arithmetic number, because the mean of its divisors is an integer number (38636325).

Almost surely, 2^1198489472 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 1198489472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236362400).

1198489472 is an abundant number, since it is smaller than the sum of its proper divisors (1274235328).

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

1198489472 is an equidigital number, since it uses as much as digits as its factorization.

1198489472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863 (or 2851 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The square root of 1198489472 is about 34619.2066922395. The cubic root of 1198489472 is about 1062.2124998737.

The spelling of 1198489472 in words is "one billion, one hundred ninety-eight million, four hundred eighty-nine thousand, four hundred seventy-two".