198091962 has 24 divisors (see below), whose sum is σ = 447861024. Its totient is φ = 63159624.

The previous prime is 198091937. The next prime is 198091979. The reversal of 198091962 is 269190891.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238828 + ... + 239655.

It is an arithmetic number, because the mean of its divisors is an integer number (18660876).

Almost surely, 2^198091962 is an apocalyptic number.

198091962 is an abundant number, since it is smaller than the sum of its proper divisors (249769062).

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

198091962 is a wasteful number, since it uses less digits than its factorization.

198091962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478514 (or 478511 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 198091962 is about 14074.5146275103. The cubic root of 198091962 is about 582.9378897750.

The spelling of 198091962 in words is "one hundred ninety-eight million, ninety-one thousand, nine hundred sixty-two".