199798410 has 128 divisors (see below), whose sum is σ = 578617344. Its totient is φ = 43188480.

The previous prime is 199798397. The next prime is 199798439. The reversal of 199798410 is 14897991.

It is a self number, because there is not a number n which added to its sum of digits gives 199798410.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 305644 + ... + 306296.

It is an arithmetic number, because the mean of its divisors is an integer number (4520448).

Almost surely, 2^199798410 is an apocalyptic number.

199798410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 199798410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289308672).

199798410 is an abundant number, since it is smaller than the sum of its proper divisors (378818934).

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

199798410 is a wasteful number, since it uses less digits than its factorization.

199798410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748.

The product of its (nonzero) digits is 163296, while the sum is 48.

The square root of 199798410 is about 14135.0065440381. The cubic root of 199798410 is about 584.6069973449.

The spelling of 199798410 in words is "one hundred ninety-nine million, seven hundred ninety-eight thousand, four hundred ten".