199193670 has 96 divisors (see below), whose sum is σ = 567088704. Its totient is φ = 48211200.

The previous prime is 199193669. The next prime is 199193677. The reversal of 199193670 is 76391991.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199193677) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 69975 + ... + 72765.

It is an arithmetic number, because the mean of its divisors is an integer number (5907174).

Almost surely, 2^199193670 is an apocalyptic number.

199193670 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 199193670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283544352).

199193670 is an abundant number, since it is smaller than the sum of its proper divisors (367895034).

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

199193670 is a wasteful number, since it uses less digits than its factorization.

199193670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878 (or 2875 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 199193670 is about 14113.5987614782. The cubic root of 199193670 is about 584.0165813613.

The spelling of 199193670 in words is "one hundred ninety-nine million, one hundred ninety-three thousand, six hundred seventy".