199492794 has 48 divisors (see below), whose sum is σ = 454464192. Its totient is φ = 65575008.

The previous prime is 199492793. The next prime is 199492801. The reversal of 199492794 is 497294991.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 199492794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199492793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32667 + ... + 38289.

It is an arithmetic number, because the mean of its divisors is an integer number (9468004).

Almost surely, 2^199492794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199492794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227232096).

199492794 is an abundant number, since it is smaller than the sum of its proper divisors (254971398).

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

199492794 is an equidigital number, since it uses as much as digits as its factorization.

199492794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713 (or 5701 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 199492794 is about 14124.1917998872. The cubic root of 199492794 is about 584.3087693687.

The spelling of 199492794 in words is "one hundred ninety-nine million, four hundred ninety-two thousand, seven hundred ninety-four".