842219484 has 12 divisors (see below), whose sum is σ = 1965178824. Its totient is φ = 280739824.

The previous prime is 842219471. The next prime is 842219489. The reversal of 842219484 is 484912248.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842219489) 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, 35092467 + ... + 35092490.

It is an arithmetic number, because the mean of its divisors is an integer number (163764902).

Almost surely, 2^842219484 is an apocalyptic number.

It is an amenable number.

842219484 is an abundant number, since it is smaller than the sum of its proper divisors (1122959340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

842219484 is a wasteful number, since it uses less digits than its factorization.

842219484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70184964 (or 70184962 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 842219484 is about 29021.0179697405. The cubic root of 842219484 is about 944.3690847654.

The spelling of 842219484 in words is "eight hundred forty-two million, two hundred nineteen thousand, four hundred eighty-four".