20422246 has 16 divisors (see below), whose sum is σ = 33206544. Its totient is φ = 9363744.

The previous prime is 20422243. The next prime is 20422247. The reversal of 20422246 is 64222402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581 + ... + 6583.

It is an arithmetic number, because the mean of its divisors is an integer number (2075409).

Almost surely, 2^20422246 is an apocalyptic number.

20422246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20422246 is a deficient number, since it is larger than the sum of its proper divisors (12784298).

20422246 is a wasteful number, since it uses less digits than its factorization.

20422246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20422246 is about 4519.0979188329. The cubic root of 20422246 is about 273.3387271723.

Adding to 20422246 its reverse (64222402), we get a palindrome (84644648).

The spelling of 20422246 in words is "twenty million, four hundred twenty-two thousand, two hundred forty-six".