20030233 has 8 divisors (see below), whose sum is σ = 21300840. Its totient is φ = 18769920.

The previous prime is 20030207. The next prime is 20030239. The reversal of 20030233 is 33203002.

It can be written as a sum of positive squares in 4 ways, for example, as 9809424 + 10220809 = 3132^2 + 3197^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20030233 - 2⁹ = 20029721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20030239) 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, 1653 + ... + 6541.

It is an arithmetic number, because the mean of its divisors is an integer number (2662605).

Almost surely, 2^20030233 is an apocalyptic number.

It is an amenable number.

20030233 is a deficient number, since it is larger than the sum of its proper divisors (1270607).

20030233 is a wasteful number, since it uses less digits than its factorization.

20030233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147.

The product of its (nonzero) digits is 108, while the sum is 13.

The square root of 20030233 is about 4475.5148307206. The cubic root of 20030233 is about 271.5784677783.

Adding to 20030233 its reverse (33203002), we get a palindrome (53233235).

The spelling of 20030233 in words is "twenty million, thirty thousand, two hundred thirty-three".