20226396 has 24 divisors (see below), whose sum is σ = 49971600. Its totient is φ = 6345472.

The previous prime is 20226391. The next prime is 20226397. The reversal of 20226396 is 69362202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20226391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 49371 + ... + 49778.

It is an arithmetic number, because the mean of its divisors is an integer number (2082150).

Almost surely, 2^20226396 is an apocalyptic number.

It is an amenable number.

20226396 is an abundant number, since it is smaller than the sum of its proper divisors (29745204).

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

20226396 is a wasteful number, since it uses less digits than its factorization.

20226396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99173 (or 99171 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20226396 is about 4497.3765686231. The cubic root of 20226396 is about 272.4621432695.

Adding to 20226396 its reverse (69362202), we get a palindrome (89588598).

The spelling of 20226396 in words is "twenty million, two hundred twenty-six thousand, three hundred ninety-six".