198849570 has 32 divisors (see below), whose sum is σ = 477722880. Its totient is φ = 52972800.

The previous prime is 198849533. The next prime is 198849577. The reversal of 198849570 is 75948891.

It is not an unprimeable number, because it can be changed into a prime (198849577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33271 + ... + 38789.

It is an arithmetic number, because the mean of its divisors is an integer number (14928840).

Almost surely, 2^198849570 is an apocalyptic number.

198849570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198849570 is an abundant number, since it is smaller than the sum of its proper divisors (278873310).

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

198849570 is a wasteful number, since it uses less digits than its factorization.

198849570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6730.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 198849570 is about 14101.4031216755. The cubic root of 198849570 is about 583.6800982224.

The spelling of 198849570 in words is "one hundred ninety-eight million, eight hundred forty-nine thousand, five hundred seventy".