19028219 has 24 divisors (see below), whose sum is σ = 23934528. Its totient is φ = 15025920.

The previous prime is 19028189. The next prime is 19028221. The reversal of 19028219 is 91282091.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-19028219 is a prime.

It is a super-2 number, since 2×19028219² = 724146236623922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19028419) 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 23 ways as a sum of consecutive naturals, for example, 43934 + ... + 44364.

It is an arithmetic number, because the mean of its divisors is an integer number (997272).

Almost surely, 2^19028219 is an apocalyptic number.

19028219 is a deficient number, since it is larger than the sum of its proper divisors (4906309).

19028219 is a wasteful number, since it uses less digits than its factorization.

19028219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 19028219 is about 4362.1346838446. The cubic root of 19028219 is about 266.9722041323.

The spelling of 19028219 in words is "nineteen million, twenty-eight thousand, two hundred nineteen".