20223606 has 16 divisors (see below), whose sum is σ = 43558704. Its totient is φ = 6222624.

The previous prime is 20223551. The next prime is 20223611. The reversal of 20223606 is 60632202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129561 + ... + 129716.

It is an arithmetic number, because the mean of its divisors is an integer number (2722419).

Almost surely, 2^20223606 is an apocalyptic number.

20223606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20223606 is an abundant number, since it is smaller than the sum of its proper divisors (23335098).

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

20223606 is a wasteful number, since it uses less digits than its factorization.

20223606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259295.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20223606 is about 4497.0663770952. The cubic root of 20223606 is about 272.4496150146.

Adding to 20223606 its reverse (60632202), we get a palindrome (80855808).

The spelling of 20223606 in words is "twenty million, two hundred twenty-three thousand, six hundred six".