199043680 has 48 divisors (see below), whose sum is σ = 512994384. Its totient is φ = 72378880.

The previous prime is 199043641. The next prime is 199043681. The reversal of 199043680 is 86340991.

199043680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199043681) 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, 54787 + ... + 58306.

It is an arithmetic number, because the mean of its divisors is an integer number (10687383).

Almost surely, 2^199043680 is an apocalyptic number.

199043680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199043680 is an abundant number, since it is smaller than the sum of its proper divisors (313950704).

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

199043680 is a wasteful number, since it uses less digits than its factorization.

199043680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113119 (or 113111 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 199043680 is about 14108.2840912706. The cubic root of 199043680 is about 583.8699591610.

The spelling of 199043680 in words is "one hundred ninety-nine million, forty-three thousand, six hundred eighty".