842193128 has 32 divisors (see below), whose sum is σ = 1808524800. Its totient is φ = 360174912.

The previous prime is 842193119. The next prime is 842193193. The reversal of 842193128 is 821391248.

It is a junction number, because it is equal to n+sod(n) for n = 842193091 and 842193100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11126 + ... + 42522.

It is an arithmetic number, because the mean of its divisors is an integer number (56516400).

Almost surely, 2^842193128 is an apocalyptic number.

It is an amenable number.

842193128 is an abundant number, since it is smaller than the sum of its proper divisors (966331672).

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

842193128 is a wasteful number, since it uses less digits than its factorization.

842193128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31889 (or 31885 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 842193128 is about 29020.5638814962. The cubic root of 842193128 is about 944.3592337896.

The spelling of 842193128 in words is "eight hundred forty-two million, one hundred ninety-three thousand, one hundred twenty-eight".