199290396 has 24 divisors (see below), whose sum is σ = 466606224. Its totient is φ = 66202240.

The previous prime is 199290391. The next prime is 199290437. The reversal of 199290396 is 693092991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199290391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24825 + ... + 31856.

It is an arithmetic number, because the mean of its divisors is an integer number (19441926).

Almost surely, 2^199290396 is an apocalyptic number.

It is an amenable number.

199290396 is an abundant number, since it is smaller than the sum of its proper divisors (267315828).

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

199290396 is a wasteful number, since it uses less digits than its factorization.

199290396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56981 (or 56979 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 48.

The square root of 199290396 is about 14117.0250407088. The cubic root of 199290396 is about 584.1110964912. Note that the first 3 decimals are identical.

The spelling of 199290396 in words is "one hundred ninety-nine million, two hundred ninety thousand, three hundred ninety-six".