198148626 has 64 divisors (see below), whose sum is σ = 476380800. Its totient is φ = 60689088.

The previous prime is 198148603. The next prime is 198148633. The reversal of 198148626 is 626841891.

198148626 is a `hidden beast` number, since 1 + 9 + 8 + 14 + 8 + 626 = 666.

It is a super-3 number, since 3×198148626³ (a number of 26 digits) contains 333 as substring.

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 31 ways as a sum of consecutive naturals, for example, 193945 + ... + 194963.

It is an arithmetic number, because the mean of its divisors is an integer number (7443450).

Almost surely, 2^198148626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198148626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238190400).

198148626 is an abundant number, since it is smaller than the sum of its proper divisors (278232174).

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

198148626 is a wasteful number, since it uses less digits than its factorization.

198148626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1314 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 198148626 is about 14076.5274837227. The cubic root of 198148626 is about 582.9934674020.

The spelling of 198148626 in words is "one hundred ninety-eight million, one hundred forty-eight thousand, six hundred twenty-six".