399936206 has 16 divisors (see below), whose sum is σ = 646166400. Its totient is φ = 185037048.

The previous prime is 399936133. The next prime is 399936211. The reversal of 399936206 is 602639993.

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 7 ways as a sum of consecutive naturals, for example, 120746 + ... + 124013.

It is an arithmetic number, because the mean of its divisors is an integer number (40385400).

Almost surely, 2^399936206 is an apocalyptic number.

399936206 is a deficient number, since it is larger than the sum of its proper divisors (246230194).

399936206 is a wasteful number, since it uses less digits than its factorization.

399936206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244823.

The product of its (nonzero) digits is 472392, while the sum is 47.

The square root of 399936206 is about 19998.4050864063. The cubic root of 399936206 is about 736.7671277947.

The spelling of 399936206 in words is "three hundred ninety-nine million, nine hundred thirty-six thousand, two hundred six".