381992206 has 8 divisors (see below), whose sum is σ = 578059344. Its totient is φ = 189305760.

The previous prime is 381992189. The next prime is 381992269. The reversal of 381992206 is 602299183.

It is a happy number.

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

It is a congruent number.

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, 844890 + ... + 845341.

It is an arithmetic number, because the mean of its divisors is an integer number (72257418).

Almost surely, 2^381992206 is an apocalyptic number.

381992206 is a deficient number, since it is larger than the sum of its proper divisors (196067138).

381992206 is a wasteful number, since it uses less digits than its factorization.

381992206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690346.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 381992206 is about 19544.6208968094. The cubic root of 381992206 is about 725.5792159255.

The spelling of 381992206 in words is "three hundred eighty-one million, nine hundred ninety-two thousand, two hundred six".