1198355488 has 48 divisors (see below), whose sum is σ = 2597876064. Its totient is φ = 539599360.

The previous prime is 1198355471. The next prime is 1198355489. The reversal of 1198355488 is 8845538911.

It is not an unprimeable number, because it can be changed into a prime (1198355489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21756 + ... + 53572.

It is an arithmetic number, because the mean of its divisors is an integer number (54122418).

Almost surely, 2^1198355488 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 1198355488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1298938032).

1198355488 is an abundant number, since it is smaller than the sum of its proper divisors (1399520576).

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

1198355488 is a wasteful number, since it uses less digits than its factorization.

1198355488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31945 (or 31937 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 52.

The square root of 1198355488 is about 34617.2715273749. The cubic root of 1198355488 is about 1062.1729153838.

The spelling of 1198355488 in words is "one billion, one hundred ninety-eight million, three hundred fifty-five thousand, four hundred eighty-eight".