199955294 has 32 divisors (see below), whose sum is σ = 374637312. Its totient is φ = 77760000.

The previous prime is 199955267. The next prime is 199955299. The reversal of 199955294 is 492559991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199955299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124094 + ... + 125694.

It is an arithmetic number, because the mean of its divisors is an integer number (11707416).

Almost surely, 2^199955294 is an apocalyptic number.

199955294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199955294 is a deficient number, since it is larger than the sum of its proper divisors (174682018).

199955294 is a wasteful number, since it uses less digits than its factorization.

199955294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432.

The product of its digits is 1312200, while the sum is 53.

The square root of 199955294 is about 14140.5549396054. The cubic root of 199955294 is about 584.7599706832.

The spelling of 199955294 in words is "one hundred ninety-nine million, nine hundred fifty-five thousand, two hundred ninety-four".