198887346 has 32 divisors (see below), whose sum is σ = 505111680. Its totient is φ = 56824848.

The previous prime is 198887333. The next prime is 198887357. The reversal of 198887346 is 643788891.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 198887292 and 198887301.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 262701 + ... + 263456.

It is an arithmetic number, because the mean of its divisors is an integer number (15784740).

Almost surely, 2^198887346 is an apocalyptic number.

198887346 is an abundant number, since it is smaller than the sum of its proper divisors (306224334).

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

198887346 is a wasteful number, since it uses less digits than its factorization.

198887346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526175 (or 526169 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 198887346 is about 14102.7424992446. The cubic root of 198887346 is about 583.7170569870.

The spelling of 198887346 in words is "one hundred ninety-eight million, eight hundred eighty-seven thousand, three hundred forty-six".