20264219 has 8 divisors (see below), whose sum is σ = 21196032. Its totient is φ = 19336680.

The previous prime is 20264207. The next prime is 20264227. The reversal of 20264219 is 91246202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20264219 is a prime.

It is a super-2 number, since 2×20264219² = 821277143359922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20264249) 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, 12362 + ... + 13904.

It is an arithmetic number, because the mean of its divisors is an integer number (2649504).

Almost surely, 2^20264219 is an apocalyptic number.

20264219 is a deficient number, since it is larger than the sum of its proper divisors (931813).

20264219 is a wasteful number, since it uses less digits than its factorization.

20264219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20264219 is about 4501.5796116474. The cubic root of 20264219 is about 272.6318706349.

The spelling of 20264219 in words is "twenty million, two hundred sixty-four thousand, two hundred nineteen".