198773850 has 96 divisors (see below), whose sum is σ = 548161344. Its totient is φ = 47257600.

The previous prime is 198773819. The next prime is 198773851. The reversal of 198773850 is 58377891.

198773850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×198773850² = 79022086887645000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198773850.

It is not an unprimeable number, because it can be changed into a prime (198773851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86314 + ... + 88586.

It is an arithmetic number, because the mean of its divisors is an integer number (5710014).

Almost surely, 2^198773850 is an apocalyptic number.

198773850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 198773850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274080672).

198773850 is an abundant number, since it is smaller than the sum of its proper divisors (349387494).

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

198773850 is a wasteful number, since it uses less digits than its factorization.

198773850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352 (or 2347 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 48.

The square root of 198773850 is about 14098.7180268278. The cubic root of 198773850 is about 583.6060022311.

The spelling of 198773850 in words is "one hundred ninety-eight million, seven hundred seventy-three thousand, eight hundred fifty".