20343806 has 8 divisors (see below), whose sum is σ = 34875120. Its totient is φ = 8718768.

The previous prime is 20343797. The next prime is 20343833. The reversal of 20343806 is 60834302.

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 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, 726551 + ... + 726578.

It is an arithmetic number, because the mean of its divisors is an integer number (4359390).

Almost surely, 2^20343806 is an apocalyptic number.

20343806 is a deficient number, since it is larger than the sum of its proper divisors (14531314).

20343806 is a wasteful number, since it uses less digits than its factorization.

20343806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453138.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20343806 is about 4510.4108460317. The cubic root of 20343806 is about 272.9883217195.

The spelling of 20343806 in words is "twenty million, three hundred forty-three thousand, eight hundred six".