20033223 has 16 divisors (see below), whose sum is σ = 31512576. Its totient is φ = 11077920.

The previous prime is 20033213. The next prime is 20033231. The reversal of 20033223 is 32233002.

It is not a de Polignac number, because 20033223 - 2⁶ = 20033159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14736 + ... + 16037.

It is an arithmetic number, because the mean of its divisors is an integer number (1969536).

Almost surely, 2^20033223 is an apocalyptic number.

20033223 is a deficient number, since it is larger than the sum of its proper divisors (11479353).

20033223 is a wasteful number, since it uses less digits than its factorization.

20033223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30814.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 20033223 is about 4475.8488580380. The cubic root of 20033223 is about 271.5919803390.

Adding to 20033223 its reverse (32233002), we get a palindrome (52266225).

The spelling of 20033223 in words is "twenty million, thirty-three thousand, two hundred twenty-three".