199699458 has 32 divisors (see below), whose sum is σ = 471183360. Its totient is φ = 55216080.

The previous prime is 199699453. The next prime is 199699517. The reversal of 199699458 is 854996991.

199699458 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199699453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75388 + ... + 77991.

It is an arithmetic number, because the mean of its divisors is an integer number (14724480).

Almost surely, 2^199699458 is an apocalyptic number.

199699458 is an abundant number, since it is smaller than the sum of its proper divisors (271483902).

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

199699458 is a wasteful number, since it uses less digits than its factorization.

199699458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153422.

The product of its digits is 6298560, while the sum is 60.

The square root of 199699458 is about 14131.5058645567. The cubic root of 199699458 is about 584.5104707440.

The spelling of 199699458 in words is "one hundred ninety-nine million, six hundred ninety-nine thousand, four hundred fifty-eight".