20000219 has 4 divisors (see below), whose sum is σ = 20146344. Its totient is φ = 19854096.

The previous prime is 20000213. The next prime is 20000221. The reversal of 20000219 is 91200002.

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 20000219 - 2⁸ = 19999963 is a prime.

It is a super-2 number, since 2×20000219² = 800017520095922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000213) 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, 72857 + ... + 73130.

It is an arithmetic number, because the mean of its divisors is an integer number (5036586).

Almost surely, 2^20000219 is an apocalyptic number.

20000219 is a deficient number, since it is larger than the sum of its proper divisors (146125).

20000219 is a wasteful number, since it uses less digits than its factorization.

20000219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146124.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 20000219 is about 4472.1604398769. The cubic root of 20000219 is about 271.4427524183.

The spelling of 20000219 in words is "twenty million, two hundred nineteen", and thus it is an aban number.