20622806 has 8 divisors (see below), whose sum is σ = 31170744. Its totient is φ = 10232560.

The previous prime is 20622803. The next prime is 20622821. The reversal of 20622806 is 60822602.

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 not an unprimeable number, because it can be changed into a prime (20622803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39095 + ... + 39618.

It is an arithmetic number, because the mean of its divisors is an integer number (3896343).

Almost surely, 2^20622806 is an apocalyptic number.

20622806 is a deficient number, since it is larger than the sum of its proper divisors (10547938).

20622806 is a wasteful number, since it uses less digits than its factorization.

20622806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78846.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20622806 is about 4541.2339732720. The cubic root of 20622806 is about 274.2306031026.

The spelling of 20622806 in words is "twenty million, six hundred twenty-two thousand, eight hundred six".