199949355 has 24 divisors (see below), whose sum is σ = 354642288. Its totient is φ = 104158656.

The previous prime is 199949317. The next prime is 199949357. The reversal of 199949355 is 553949991.

199949355 is a `hidden beast` number, since 19 + 99 + 493 + 55 = 666.

It is not a de Polignac number, because 199949355 - 2⁷ = 199949227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199949357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49732 + ... + 53601.

It is an arithmetic number, because the mean of its divisors is an integer number (14776762).

Almost surely, 2^199949355 is an apocalyptic number.

199949355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199949355 is a deficient number, since it is larger than the sum of its proper divisors (154692933).

199949355 is a wasteful number, since it uses less digits than its factorization.

199949355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103387 (or 103384 counting only the distinct ones).

The product of its digits is 1968300, while the sum is 54.

The square root of 199949355 is about 14140.3449392156. The cubic root of 199949355 is about 584.7541811826.

The spelling of 199949355 in words is "one hundred ninety-nine million, nine hundred forty-nine thousand, three hundred fifty-five".