842219319 has 4 divisors (see below), whose sum is σ = 1122959096. Its totient is φ = 561479544.

The previous prime is 842219317. The next prime is 842219333. The reversal of 842219319 is 913912248.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 842219319 - 2¹ = 842219317 is a prime.

It is a super-2 number, since 2×842219319² = 1418666762593647522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842219311) 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, 140369884 + ... + 140369889.

It is an arithmetic number, because the mean of its divisors is an integer number (280739774).

Almost surely, 2^842219319 is an apocalyptic number.

842219319 is a deficient number, since it is larger than the sum of its proper divisors (280739777).

842219319 is a wasteful number, since it uses less digits than its factorization.

842219319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280739776.

The product of its digits is 31104, while the sum is 39.

The square root of 842219319 is about 29021.0151269731. The cubic root of 842219319 is about 944.3690230947.

The spelling of 842219319 in words is "eight hundred forty-two million, two hundred nineteen thousand, three hundred nineteen".