1198825500 has 48 divisors (see below), whose sum is σ = 3490984224. Its totient is φ = 319686400.

The previous prime is 1198825489. The next prime is 1198825513. The reversal of 1198825500 is 55288911.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398109 + ... + 401108.

It is an arithmetic number, because the mean of its divisors is an integer number (72728838).

Almost surely, 2^1198825500 is an apocalyptic number.

1198825500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1198825500 is an abundant number, since it is smaller than the sum of its proper divisors (2292158724).

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

1198825500 is a wasteful number, since it uses less digits than its factorization.

1198825500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799239 (or 799227 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 39.

The square root of 1198825500 is about 34624.0595540153. The cubic root of 1198825500 is about 1062.3117636545.

The spelling of 1198825500 in words is "one billion, one hundred ninety-eight million, eight hundred twenty-five thousand, five hundred".