198789050 has 48 divisors (see below), whose sum is σ = 383880192. Its totient is φ = 76507200.

The previous prime is 198789047. The next prime is 198789053. The reversal of 198789050 is 50987891.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (198789047) and next prime (198789053).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 198788986 and 198789004.

It is not an unprimeable number, because it can be changed into a prime (198789053) 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 23 ways as a sum of consecutive naturals, for example, 429119 + ... + 429581.

It is an arithmetic number, because the mean of its divisors is an integer number (7997504).

Almost surely, 2^198789050 is an apocalyptic number.

198789050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198789050 is a deficient number, since it is larger than the sum of its proper divisors (185091142).

198789050 is a wasteful number, since it uses less digits than its factorization.

198789050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 198789050 is about 14099.2570726262. The cubic root of 198789050 is about 583.6208777376.

The spelling of 198789050 in words is "one hundred ninety-eight million, seven hundred eighty-nine thousand, fifty".