198136926 has 24 divisors (see below), whose sum is σ = 462320040. Its totient is φ = 60965136.

The previous prime is 198136901. The next prime is 198136933. The reversal of 198136926 is 629631891.

It is a happy number.

It is a super-3 number, since 3×198136926³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 423136 + ... + 423603.

It is an arithmetic number, because the mean of its divisors is an integer number (19263335).

Almost surely, 2^198136926 is an apocalyptic number.

198136926 is an abundant number, since it is smaller than the sum of its proper divisors (264183114).

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

198136926 is a wasteful number, since it uses less digits than its factorization.

198136926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846760 (or 846757 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 198136926 is about 14076.1118921384. Note that the first 3 decimals coincide. The cubic root of 198136926 is about 582.9819925847.

The spelling of 198136926 in words is "one hundred ninety-eight million, one hundred thirty-six thousand, nine hundred twenty-six".