20226206 has 32 divisors (see below), whose sum is σ = 40739328. Its totient is φ = 7273440.

The previous prime is 20226191. The next prime is 20226221. The reversal of 20226206 is 60262202.

20226206 = 1351² + 1352² + ... + 1361².

It is an interprime number because it is at equal distance from previous prime (20226191) and next prime (20226221).

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3050 + ... + 7053.

It is an arithmetic number, because the mean of its divisors is an integer number (1273104).

Almost surely, 2^20226206 is an apocalyptic number.

20226206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20226206 is an abundant number, since it is smaller than the sum of its proper divisors (20513122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20226206 is a wasteful number, since it uses less digits than its factorization.

20226206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10136.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20226206 is about 4497.3554451477. The cubic root of 20226206 is about 272.4612901274.

Adding to 20226206 its reverse (60262202), we get a palindrome (80488408).

It can be divided in two parts, 2022 and 6206, that added together give a palindrome (8228).

The spelling of 20226206 in words is "twenty million, two hundred twenty-six thousand, two hundred six".