198796920 has 96 divisors (see below), whose sum is σ = 693781200. Its totient is φ = 45437952.

The previous prime is 198796891. The next prime is 198796931. The reversal of 198796920 is 29697891.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11025 + ... + 22784.

Almost surely, 2^198796920 is an apocalyptic number.

198796920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198796920 is an abundant number, since it is smaller than the sum of its proper divisors (494984280).

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

198796920 is a wasteful number, since it uses less digits than its factorization.

198796920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33837 (or 33826 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 198796920 is about 14099.5361625835. The cubic root of 198796920 is about 583.6285794290.

The spelling of 198796920 in words is "one hundred ninety-eight million, seven hundred ninety-six thousand, nine hundred twenty".