198469956 has 12 divisors (see below), whose sum is σ = 463096592. Its totient is φ = 66156648.

The previous prime is 198469933. The next prime is 198469969. The reversal of 198469956 is 659964891.

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

It is a junction number, because it is equal to n+sod(n) for n = 198469896 and 198469905.

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 3 ways as a sum of consecutive naturals, for example, 8269570 + ... + 8269593.

Almost surely, 2^198469956 is an apocalyptic number.

It is an amenable number.

198469956 is an abundant number, since it is smaller than the sum of its proper divisors (264626636).

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

198469956 is a wasteful number, since it uses less digits than its factorization.

198469956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16539170 (or 16539168 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 57.

The square root of 198469956 is about 14087.9365415947. The cubic root of 198469956 is about 583.3084365610.

The spelling of 198469956 in words is "one hundred ninety-eight million, four hundred sixty-nine thousand, nine hundred fifty-six".