199434489 has 16 divisors (see below), whose sum is σ = 272743680. Its totient is φ = 129565440.

The previous prime is 199434481. The next prime is 199434517. The reversal of 199434489 is 984434991.

It is a happy number.

It is not a de Polignac number, because 199434489 - 2³ = 199434481 is a prime.

It is a super-2 number, since 2×199434489² = 79548230805382242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199434481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31047 + ... + 36915.

It is an arithmetic number, because the mean of its divisors is an integer number (17046480).

Almost surely, 2^199434489 is an apocalyptic number.

It is an amenable number.

199434489 is a deficient number, since it is larger than the sum of its proper divisors (73309191).

199434489 is a wasteful number, since it uses less digits than its factorization.

199434489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160.

The product of its digits is 1119744, while the sum is 51.

The square root of 199434489 is about 14122.1276371516. The cubic root of 199434489 is about 584.2518392551.

The spelling of 199434489 in words is "one hundred ninety-nine million, four hundred thirty-four thousand, four hundred eighty-nine".