20484219 has 8 divisors (see below), whose sum is σ = 31214080. Its totient is φ = 11705256.

The previous prime is 20484203. The next prime is 20484239. The reversal of 20484219 is 91248402.

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

It is not a de Polignac number, because 20484219 - 2⁴ = 20484203 is a prime.

It is a super-2 number, since 2×20484219² = 839206456079922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20484239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487699 + ... + 487740.

It is an arithmetic number, because the mean of its divisors is an integer number (3901760).

Almost surely, 2^20484219 is an apocalyptic number.

20484219 is a deficient number, since it is larger than the sum of its proper divisors (10729861).

20484219 is an equidigital number, since it uses as much as digits as its factorization.

20484219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975449.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 20484219 is about 4525.9495136380. The cubic root of 20484219 is about 273.6149376484.

The spelling of 20484219 in words is "twenty million, four hundred eighty-four thousand, two hundred nineteen".