199616790 has 32 divisors (see below), whose sum is σ = 482306400. Its totient is φ = 52872704.

The previous prime is 199616789. The next prime is 199616797. The reversal of 199616790 is 97616991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199616797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17859 + ... + 26798.

It is an arithmetic number, because the mean of its divisors is an integer number (15072075).

Almost surely, 2^199616790 is an apocalyptic number.

199616790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199616790 is an abundant number, since it is smaller than the sum of its proper divisors (282689610).

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

199616790 is a wasteful number, since it uses less digits than its factorization.

199616790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44816.

The product of its (nonzero) digits is 183708, while the sum is 48.

The square root of 199616790 is about 14128.5806081149. The cubic root of 199616790 is about 584.4298045582.

The spelling of 199616790 in words is "one hundred ninety-nine million, six hundred sixteen thousand, seven hundred ninety".