199332538 has 8 divisors (see below), whose sum is σ = 300903732. Its totient is φ = 99031296.

The previous prime is 199332527. The next prime is 199332557. The reversal of 199332538 is 835233991.

It can be written as a sum of positive squares in 2 ways, for example, as 199289689 + 42849 = 14117^2 + 207^2 .

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 = 199332494 and 199332503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317095 + ... + 317722.

Almost surely, 2^199332538 is an apocalyptic number.

199332538 is a deficient number, since it is larger than the sum of its proper divisors (101571194).

199332538 is a wasteful number, since it uses less digits than its factorization.

199332538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634976.

The product of its digits is 174960, while the sum is 43.

The square root of 199332538 is about 14118.5175567409. The cubic root of 199332538 is about 584.1522656852.

The spelling of 199332538 in words is "one hundred ninety-nine million, three hundred thirty-two thousand, five hundred thirty-eight".