198099426 has 32 divisors (see below), whose sum is σ = 456376320. Its totient is φ = 56152656.

The previous prime is 198099389. The next prime is 198099449. The reversal of 198099426 is 624990891.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13236 + ... + 23903.

It is an arithmetic number, because the mean of its divisors is an integer number (14261760).

Almost surely, 2^198099426 is an apocalyptic number.

198099426 is an abundant number, since it is smaller than the sum of its proper divisors (258276894).

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

198099426 is a wasteful number, since it uses less digits than its factorization.

198099426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37278.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 198099426 is about 14074.7797851334. The cubic root of 198099426 is about 582.9452112798.

The spelling of 198099426 in words is "one hundred ninety-eight million, ninety-nine thousand, four hundred twenty-six".