20248219 has 4 divisors (see below), whose sum is σ = 20742120. Its totient is φ = 19754320.

The previous prime is 20248199. The next prime is 20248223. The reversal of 20248219 is 91284202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91284202 = 2 ⋅45642101.

It is a cyclic number.

It is not a de Polignac number, because 20248219 - 2⁵ = 20248187 is a prime.

It is a super-2 number, since 2×20248219² = 819980745343922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20248519) 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, 246889 + ... + 246970.

It is an arithmetic number, because the mean of its divisors is an integer number (5185530).

Almost surely, 2^20248219 is an apocalyptic number.

20248219 is a deficient number, since it is larger than the sum of its proper divisors (493901).

20248219 is an equidigital number, since it uses as much as digits as its factorization.

20248219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493900.

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

The square root of 20248219 is about 4499.8021067598. The cubic root of 20248219 is about 272.5600978467.

The spelling of 20248219 in words is "twenty million, two hundred forty-eight thousand, two hundred nineteen".