20006419 has 2 divisors, whose sum is σ = 20006420. Its totient is φ = 20006418.

The previous prime is 20006359. The next prime is 20006423. The reversal of 20006419 is 91460002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20006419 - 2⁹ = 20005907 is a prime.

It is a super-2 number, since 2×20006419² = 800513602407122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20006419.

It is not a weakly prime, because it can be changed into another prime (20006429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10003209 + 10003210.

It is an arithmetic number, because the mean of its divisors is an integer number (10003210).

Almost surely, 2^20006419 is an apocalyptic number.

20006419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20006419 is an equidigital number, since it uses as much as digits as its factorization.

20006419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20006419 is about 4472.8535634425. The cubic root of 20006419 is about 271.4707982977.

The spelling of 20006419 in words is "twenty million, six thousand, four hundred nineteen".