198089574 has 16 divisors (see below), whose sum is σ = 401760000. Its totient is φ = 65099720.

The previous prime is 198089561. The next prime is 198089579. The reversal of 198089574 is 475980891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198089579) 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 7 ways as a sum of consecutive naturals, for example, 232074 + ... + 232925.

It is an arithmetic number, because the mean of its divisors is an integer number (25110000).

Almost surely, 2^198089574 is an apocalyptic number.

198089574 is an abundant number, since it is smaller than the sum of its proper divisors (203670426).

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

198089574 is a wasteful number, since it uses less digits than its factorization.

198089574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465075.

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

The square root of 198089574 is about 14074.4297930680. The cubic root of 198089574 is about 582.9355473254.

The spelling of 198089574 in words is "one hundred ninety-eight million, eighty-nine thousand, five hundred seventy-four".