198822140 has 48 divisors (see below), whose sum is σ = 482285664. Its totient is φ = 68044800.

The previous prime is 198822109. The next prime is 198822149. The reversal of 198822140 is 41228891.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 198822140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198822149) by changing a digit.

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, 22841 + ... + 30320.

It is an arithmetic number, because the mean of its divisors is an integer number (10047618).

Almost surely, 2^198822140 is an apocalyptic number.

198822140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198822140 is an abundant number, since it is smaller than the sum of its proper divisors (283463524).

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

198822140 is a wasteful number, since it uses less digits than its factorization.

198822140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53198 (or 53196 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 198822140 is about 14100.4304898822. The cubic root of 198822140 is about 583.6532587019.

It can be divided in two parts, 19882 and 2140, that added together give a palindrome (22022).

The spelling of 198822140 in words is "one hundred ninety-eight million, eight hundred twenty-two thousand, one hundred forty".