20020267 has 2 divisors, whose sum is σ = 20020268. Its totient is φ = 20020266.

The previous prime is 20020223. The next prime is 20020277. The reversal of 20020267 is 76202002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020267 is a prime.

It is a super-2 number, since 2×20020267² = 801622181502578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20020207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010133 + 10010134.

It is an arithmetic number, because the mean of its divisors is an integer number (10010134).

Almost surely, 2^20020267 is an apocalyptic number.

20020267 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020267 is an equidigital number, since it uses as much as digits as its factorization.

20020267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20020267 is about 4474.4013007329. The cubic root of 20020267 is about 271.5334192091.

Adding to 20020267 its reverse (76202002), we get a palindrome (96222269).

The spelling of 20020267 in words is "twenty million, twenty thousand, two hundred sixty-seven".