20364223 has 8 divisors (see below), whose sum is σ = 23181696. Its totient is φ = 17707800.

The previous prime is 20364221. The next prime is 20364247. The reversal of 20364223 is 32246302.

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 20364223 - 2¹ = 20364221 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20364194 and 20364203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20364221) 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, 39993 + ... + 40498.

It is an arithmetic number, because the mean of its divisors is an integer number (2897712).

Almost surely, 2^20364223 is an apocalyptic number.

20364223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20364223 is a deficient number, since it is larger than the sum of its proper divisors (2817473).

20364223 is a wasteful number, since it uses less digits than its factorization.

20364223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80525.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 20364223 is about 4512.6735977688. The cubic root of 20364223 is about 273.0796146836.

The spelling of 20364223 in words is "twenty million, three hundred sixty-four thousand, two hundred twenty-three".