20934206 has 8 divisors (see below), whose sum is σ = 32131704. Its totient is φ = 10223640.

The previous prime is 20934197. The next prime is 20934233. The reversal of 20934206 is 60243902.

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

It is a Curzon number.

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, 121625 + ... + 121796.

It is an arithmetic number, because the mean of its divisors is an integer number (4016463).

Almost surely, 2^20934206 is an apocalyptic number.

20934206 is a deficient number, since it is larger than the sum of its proper divisors (11197498).

20934206 is a wasteful number, since it uses less digits than its factorization.

20934206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243466.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20934206 is about 4575.3913493820. The cubic root of 20934206 is about 275.6039881796.

The spelling of 20934206 in words is "twenty million, nine hundred thirty-four thousand, two hundred six".