20040833 has 2 divisors, whose sum is σ = 20040834. Its totient is φ = 20040832.

The previous prime is 20040829. The next prime is 20040851. The reversal of 20040833 is 33804002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18722929 + 1317904 = 4327^2 + 1148^2 .

It is a cyclic number.

It is not a de Polignac number, because 20040833 - 2² = 20040829 is a prime.

It is not a weakly prime, because it can be changed into another prime (20040803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020416 + 10020417.

It is an arithmetic number, because the mean of its divisors is an integer number (10020417).

Almost surely, 2^20040833 is an apocalyptic number.

It is an amenable number.

20040833 is a deficient number, since it is larger than the sum of its proper divisors (1).

20040833 is an equidigital number, since it uses as much as digits as its factorization.

20040833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20040833 is about 4476.6988953916. The cubic root of 20040833 is about 271.6263657750.

Adding to 20040833 its reverse (33804002), we get a palindrome (53844835).

The spelling of 20040833 in words is "twenty million, forty thousand, eight hundred thirty-three".