198005892 has 48 divisors (see below), whose sum is σ = 540903552. Its totient is φ = 55192320.

The previous prime is 198005891. The next prime is 198005893. The reversal of 198005892 is 298500891.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (198005891) and next prime (198005893).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (198005891) 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, 25303 + ... + 32190.

It is an arithmetic number, because the mean of its divisors is an integer number (11268824).

Almost surely, 2^198005892 is an apocalyptic number.

198005892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198005892 is an abundant number, since it is smaller than the sum of its proper divisors (342897660).

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

198005892 is a wasteful number, since it uses less digits than its factorization.

198005892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57548 (or 57546 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 198005892 is about 14071.4566410162. The cubic root of 198005892 is about 582.8534496457.

The spelling of 198005892 in words is "one hundred ninety-eight million, five thousand, eight hundred ninety-two".