20350223 has 8 divisors (see below), whose sum is σ = 21022848. Its totient is φ = 19686744.

The previous prime is 20350217. The next prime is 20350243. The reversal of 20350223 is 32205302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20350223 is a prime.

It is a super-2 number, since 2×20350223² = 828263152299458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350243) 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, 2390 + ... + 6812.

It is an arithmetic number, because the mean of its divisors is an integer number (2627856).

Almost surely, 2^20350223 is an apocalyptic number.

20350223 is a deficient number, since it is larger than the sum of its proper divisors (672625).

20350223 is a wasteful number, since it uses less digits than its factorization.

20350223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4573.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 20350223 is about 4511.1221442120. The cubic root of 20350223 is about 273.0170213953.

Adding to 20350223 its reverse (32205302), we get a palindrome (52555525).

The spelling of 20350223 in words is "twenty million, three hundred fifty thousand, two hundred twenty-three".