199337438 has 8 divisors (see below), whose sum is σ = 301966920. Its totient is φ = 98681800.

The previous prime is 199337429. The next prime is 199337491. The reversal of 199337438 is 834733991.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 199337392 and 199337401.

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 3 ways as a sum of consecutive naturals, for example, 493208 + ... + 493611.

It is an arithmetic number, because the mean of its divisors is an integer number (37745865).

Almost surely, 2^199337438 is an apocalyptic number.

199337438 is a deficient number, since it is larger than the sum of its proper divisors (102629482).

199337438 is a wasteful number, since it uses less digits than its factorization.

199337438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986922.

The product of its digits is 489888, while the sum is 47.

The square root of 199337438 is about 14118.6910866411. The cubic root of 199337438 is about 584.1570521971.

The spelling of 199337438 in words is "one hundred ninety-nine million, three hundred thirty-seven thousand, four hundred thirty-eight".