1198119900 has 36 divisors (see below), whose sum is σ = 3466561112. Its totient is φ = 319498560.

The previous prime is 1198119883. The next prime is 1198119943. The reversal of 1198119900 is 99118911.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1996567 + ... + 1997166.

Almost surely, 2^1198119900 is an apocalyptic number.

1198119900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1198119900 is an abundant number, since it is smaller than the sum of its proper divisors (2268441212).

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

1198119900 is a wasteful number, since it uses less digits than its factorization.

1198119900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993750 (or 3993743 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 39.

The square root of 1198119900 is about 34613.8686078283. The cubic root of 1198119900 is about 1062.1033056574.

The spelling of 1198119900 in words is "one billion, one hundred ninety-eight million, one hundred nineteen thousand, nine hundred".