198016920 has 64 divisors (see below), whose sum is σ = 660060000. Its totient is φ = 52804224.

The previous prime is 198016891. The next prime is 198016943. The reversal of 198016920 is 29610891.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90595 + ... + 92754.

Almost surely, 2^198016920 is an apocalyptic number.

198016920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198016920 is an abundant number, since it is smaller than the sum of its proper divisors (462043080).

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

198016920 is a wasteful number, since it uses less digits than its factorization.

198016920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183369 (or 183359 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 198016920 is about 14071.8484926466. The cubic root of 198016920 is about 582.8642701798.

The spelling of 198016920 in words is "one hundred ninety-eight million, sixteen thousand, nine hundred twenty".