1198983900 has 72 divisors (see below), whose sum is σ = 3580993024. Its totient is φ = 309412800.

The previous prime is 1198983889. The next prime is 1198983911. The reversal of 1198983900 is 93898911.

It is an interprime number because it is at equal distance from previous prime (1198983889) and next prime (1198983911).

It is a self number, because there is not a number n which added to its sum of digits gives 1198983900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55162 + ... + 73761.

Almost surely, 2^1198983900 is an apocalyptic number.

1198983900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1198983900 is an abundant number, since it is smaller than the sum of its proper divisors (2382009124).

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

1198983900 is a wasteful number, since it uses less digits than its factorization.

1198983900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128971 (or 128964 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 48.

The square root of 1198983900 is about 34626.3469052108. The cubic root of 1198983900 is about 1062.3585491049.

The spelling of 1198983900 in words is "one billion, one hundred ninety-eight million, nine hundred eighty-three thousand, nine hundred".