199862238 has 16 divisors (see below), whose sum is σ = 399934080. Its totient is φ = 66585816.

The previous prime is 199862233. The next prime is 199862261. The reversal of 199862238 is 832268991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199862233) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5431 + ... + 20717.

It is an arithmetic number, because the mean of its divisors is an integer number (24995880).

Almost surely, 2^199862238 is an apocalyptic number.

199862238 is an abundant number, since it is smaller than the sum of its proper divisors (200071842).

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

199862238 is a wasteful number, since it uses less digits than its factorization.

199862238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17471.

The product of its digits is 373248, while the sum is 48.

The square root of 199862238 is about 14137.2641624891. The cubic root of 199862238 is about 584.6692439574.

The spelling of 199862238 in words is "one hundred ninety-nine million, eight hundred sixty-two thousand, two hundred thirty-eight".