20422419 has 4 divisors (see below), whose sum is σ = 27229896. Its totient is φ = 13614944.

The previous prime is 20422357. The next prime is 20422421. The reversal of 20422419 is 91422402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20422419 - 2¹¹ = 20420371 is a prime.

It is a super-3 number, since 3×20422419³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20422439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3403734 + ... + 3403739.

It is an arithmetic number, because the mean of its divisors is an integer number (6807474).

Almost surely, 2^20422419 is an apocalyptic number.

20422419 is a deficient number, since it is larger than the sum of its proper divisors (6807477).

20422419 is an equidigital number, since it uses as much as digits as its factorization.

20422419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6807476.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20422419 is about 4519.1170597806. The cubic root of 20422419 is about 273.3394990016.

The spelling of 20422419 in words is "twenty million, four hundred twenty-two thousand, four hundred nineteen".