20104433 has 2 divisors, whose sum is σ = 20104434. Its totient is φ = 20104432.

The previous prime is 20104429. The next prime is 20104493. The reversal of 20104433 is 33440102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18079504 + 2024929 = 4252^2 + 1423^2 .

It is a cyclic number.

It is not a de Polignac number, because 20104433 - 2² = 20104429 is a prime.

It is not a weakly prime, because it can be changed into another prime (20104423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10052216 + 10052217.

It is an arithmetic number, because the mean of its divisors is an integer number (10052217).

Almost surely, 2^20104433 is an apocalyptic number.

It is an amenable number.

20104433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20104433 is an equidigital number, since it uses as much as digits as its factorization.

20104433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20104433 is about 4483.7967170691. The cubic root of 20104433 is about 271.9133996583.

Adding to 20104433 its reverse (33440102), we get a palindrome (53544535).

The spelling of 20104433 in words is "twenty million, one hundred four thousand, four hundred thirty-three".