199818010 has 32 divisors (see below), whose sum is σ = 421085952. Its totient is φ = 66837120.

The previous prime is 199818007. The next prime is 199818023. The reversal of 199818010 is 10818991.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31942 + ... + 37681.

It is an arithmetic number, because the mean of its divisors is an integer number (13158936).

Almost surely, 2^199818010 is an apocalyptic number.

199818010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199818010 is an abundant number, since it is smaller than the sum of its proper divisors (221267942).

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

199818010 is a wasteful number, since it uses less digits than its factorization.

199818010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69678.

The product of its (nonzero) digits is 5184, while the sum is 37.

The square root of 199818010 is about 14135.6998411823. The cubic root of 199818010 is about 584.6261131501.

The spelling of 199818010 in words is "one hundred ninety-nine million, eight hundred eighteen thousand, ten".