199959470 has 32 divisors (see below), whose sum is σ = 385743168. Its totient is φ = 74435328.

The previous prime is 199959469. The next prime is 199959499. The reversal of 199959470 is 74959991.

It is a congruent number.

It is an unprimeable number.

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, 3239 + ... + 20258.

It is an arithmetic number, because the mean of its divisors is an integer number (12054474).

Almost surely, 2^199959470 is an apocalyptic number.

199959470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199959470 is a deficient number, since it is larger than the sum of its proper divisors (185783698).

199959470 is a wasteful number, since it uses less digits than its factorization.

199959470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23564.

The product of its (nonzero) digits is 918540, while the sum is 53.

The square root of 199959470 is about 14140.7025992346. The cubic root of 199959470 is about 584.7640414942.

The spelling of 199959470 in words is "one hundred ninety-nine million, nine hundred fifty-nine thousand, four hundred seventy".