198999996 has 48 divisors (see below), whose sum is σ = 526377600. Its totient is φ = 58007232.

The previous prime is 198999967. The next prime is 199000003. The reversal of 198999996 is 699999891.

198999996 = T₇₃ + T₇₄ + ... + T₁₀₆₀.

It is a self number, because there is not a number n which added to its sum of digits gives 198999996.

It is a congruent 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, 30606 + ... + 36533.

It is an arithmetic number, because the mean of its divisors is an integer number (10966200).

Almost surely, 2^198999996 is an apocalyptic number.

It is an amenable number.

198999996 is an abundant number, since it is smaller than the sum of its proper divisors (327377604).

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

198999996 is a wasteful number, since it uses less digits than its factorization.

198999996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67178 (or 67176 counting only the distinct ones).

The product of its digits is 25509168, while the sum is 69.

The square root of 198999996 is about 14106.7358378896. The cubic root of 198999996 is about 583.8272421697.

The spelling of 198999996 in words is "one hundred ninety-eight million, nine hundred ninety-nine thousand, nine hundred ninety-six".