199028630 has 8 divisors (see below), whose sum is σ = 358251552. Its totient is φ = 79611448.

The previous prime is 199028617. The next prime is 199028657. The reversal of 199028630 is 36820991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×199028630² = 79224791119353800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9951422 + ... + 9951441.

It is an arithmetic number, because the mean of its divisors is an integer number (44781444).

Almost surely, 2^199028630 is an apocalyptic number.

199028630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199028630 is a deficient number, since it is larger than the sum of its proper divisors (159222922).

199028630 is a wasteful number, since it uses less digits than its factorization.

199028630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19902870.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 199028630 is about 14107.7507066151. The cubic root of 199028630 is about 583.8552430203.

The spelling of 199028630 in words is "one hundred ninety-nine million, twenty-eight thousand, six hundred thirty".