198922950 has 72 divisors (see below), whose sum is σ = 565899048. Its totient is φ = 49923840.

The previous prime is 198922949. The next prime is 198922957. The reversal of 198922950 is 59229891.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 198922896 and 198922905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198922957) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5352 + ... + 20651.

It is an arithmetic number, because the mean of its divisors is an integer number (7859709).

Almost surely, 2^198922950 is an apocalyptic number.

198922950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198922950 is an abundant number, since it is smaller than the sum of its proper divisors (366976098).

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

198922950 is a wasteful number, since it uses less digits than its factorization.

198922950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26038 (or 26030 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 198922950 is about 14104.0047504246. The cubic root of 198922950 is about 583.7518864562.

The spelling of 198922950 in words is "one hundred ninety-eight million, nine hundred twenty-two thousand, nine hundred fifty".