199238079 has 16 divisors (see below), whose sum is σ = 284843520. Its totient is φ = 123427200.

The previous prime is 199238069. The next prime is 199238099. The reversal of 199238079 is 970832991.

It is not a de Polignac number, because 199238079 - 2⁴ = 199238063 is a prime.

It is a super-2 number, since 2×199238079² = 79391624247220482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199238059) 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, 20697 + ... + 28754.

It is an arithmetic number, because the mean of its divisors is an integer number (17802720).

Almost surely, 2^199238079 is an apocalyptic number.

199238079 is a deficient number, since it is larger than the sum of its proper divisors (85605441).

199238079 is a wasteful number, since it uses less digits than its factorization.

199238079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49550.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 199238079 is about 14115.1719436924. The cubic root of 199238079 is about 584.0599791012.

The spelling of 199238079 in words is "one hundred ninety-nine million, two hundred thirty-eight thousand, seventy-nine".