199000998 has 48 divisors (see below), whose sum is σ = 493549056. Its totient is φ = 56766960.

The previous prime is 199000981. The next prime is 199001009. The reversal of 199000998 is 899000991.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154465 + ... + 155747.

It is an arithmetic number, because the mean of its divisors is an integer number (10282272).

Almost surely, 2^199000998 is an apocalyptic number.

199000998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

199000998 is an abundant number, since it is smaller than the sum of its proper divisors (294548058).

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

199000998 is a wasteful number, since it uses less digits than its factorization.

199000998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529 (or 2526 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The square root of 199000998 is about 14106.7713527937. The cubic root of 199000998 is about 583.8282220590.

The spelling of 199000998 in words is "one hundred ninety-nine million, nine hundred ninety-eight", and thus it is an aban number.