20822419 has 2 divisors, whose sum is σ = 20822420. Its totient is φ = 20822418.

The previous prime is 20822407. The next prime is 20822437. The reversal of 20822419 is 91422802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20822419 - 2⁹ = 20821907 is a prime.

It is a super-2 number, since 2×20822419² = 867146266023122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20822519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10411209 + 10411210.

It is an arithmetic number, because the mean of its divisors is an integer number (10411210).

Almost surely, 2^20822419 is an apocalyptic number.

20822419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20822419 is an equidigital number, since it uses as much as digits as its factorization.

20822419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 20822419 is about 4563.1588839312. The cubic root of 20822419 is about 275.1125445681.

The spelling of 20822419 in words is "twenty million, eight hundred twenty-two thousand, four hundred nineteen".