20226305 has 8 divisors (see below), whose sum is σ = 26478144. Its totient is φ = 14710000.

The previous prime is 20226301. The next prime is 20226313. The reversal of 20226305 is 50362202.

It is a happy number.

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

It is not a de Polignac number, because 20226305 - 2² = 20226301 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20226301) 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, 183821 + ... + 183930.

It is an arithmetic number, because the mean of its divisors is an integer number (3309768).

Almost surely, 2^20226305 is an apocalyptic number.

It is an amenable number.

20226305 is a deficient number, since it is larger than the sum of its proper divisors (6251839).

20226305 is a wasteful number, since it uses less digits than its factorization.

20226305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367767.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 20226305 is about 4497.3664516025. The cubic root of 20226305 is about 272.4617346600.

Adding to 20226305 its reverse (50362202), we get a palindrome (70588507).

The spelling of 20226305 in words is "twenty million, two hundred twenty-six thousand, three hundred five".