1198703868 has 12 divisors (see below), whose sum is σ = 2796975720. Its totient is φ = 399567952.

The previous prime is 1198703861. The next prime is 1198703917. The reversal of 1198703868 is 8683078911.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1198703868² = 2873781926316322848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1198703868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198703861) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 49945983 + ... + 49946006.

It is an arithmetic number, because the mean of its divisors is an integer number (233081310).

Almost surely, 2^1198703868 is an apocalyptic number.

It is an amenable number.

1198703868 is an abundant number, since it is smaller than the sum of its proper divisors (1598271852).

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

1198703868 is a wasteful number, since it uses less digits than its factorization.

1198703868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99891996 (or 99891994 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 1198703868 is about 34622.3030429808. The cubic root of 1198703868 is about 1062.2758353022.

The spelling of 1198703868 in words is "one billion, one hundred ninety-eight million, seven hundred three thousand, eight hundred sixty-eight".