199907344 has 160 divisors (see below), whose sum is σ = 508411904. Its totient is φ = 74027520.

The previous prime is 199907333. The next prime is 199907359. The reversal of 199907344 is 443709991.

It is a junction number, because it is equal to n+sod(n) for n = 199907294 and 199907303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1940797 + ... + 1940899.

Almost surely, 2^199907344 is an apocalyptic number.

199907344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199907344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254205952).

199907344 is an abundant number, since it is smaller than the sum of its proper divisors (308504560).

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

199907344 is a wasteful number, since it uses less digits than its factorization.

199907344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 199907344 is about 14138.8593599342. The cubic root of 199907344 is about 584.7132244303.

The spelling of 199907344 in words is "one hundred ninety-nine million, nine hundred seven thousand, three hundred forty-four".