20042419 has 8 divisors (see below), whose sum is σ = 20640080. Its totient is φ = 19447776.

The previous prime is 20042417. The next prime is 20042443. The reversal of 20042419 is 91424002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20042419 - 2¹ = 20042417 is a prime.

It is a super-2 number, since 2×20042419² = 803397118743122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20042419.

It is not an unprimeable number, because it can be changed into a prime (20042413) 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 in 7 ways as a sum of consecutive naturals, for example, 26752 + ... + 27490.

It is an arithmetic number, because the mean of its divisors is an integer number (2580010).

Almost surely, 2^20042419 is an apocalyptic number.

20042419 is a deficient number, since it is larger than the sum of its proper divisors (597661).

20042419 is an equidigital number, since it uses as much as digits as its factorization.

20042419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 20042419 is about 4476.8760313415. The cubic root of 20042419 is about 271.6335309471.

The spelling of 20042419 in words is "twenty million, forty-two thousand, four hundred nineteen".