199102680 has 144 divisors (see below), whose sum is σ = 752796720. Its totient is φ = 45505152.

The previous prime is 199102663. The next prime is 199102681. The reversal of 199102680 is 86201991.

199102680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199102681) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11997 + ... + 23283.

It is an arithmetic number, because the mean of its divisors is an integer number (5227755).

Almost surely, 2^199102680 is an apocalyptic number.

199102680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199102680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376398360).

199102680 is an abundant number, since it is smaller than the sum of its proper divisors (553694040).

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

199102680 is a wasteful number, since it uses less digits than its factorization.

199102680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11318 (or 11304 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 199102680 is about 14110.3749064297. The cubic root of 199102680 is about 583.9276431903.

The spelling of 199102680 in words is "one hundred ninety-nine million, one hundred two thousand, six hundred eighty".