842226642 has 48 divisors (see below), whose sum is σ = 1987128000. Its totient is φ = 256792032.

The previous prime is 842226617. The next prime is 842226643. The reversal of 842226642 is 246622248.

842226642 is a `hidden beast` number, since 8 + 4 + 2 + 2 + 2 + 6 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 842226597 and 842226606.

It is not an unprimeable number, because it can be changed into a prime (842226643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32542 + ... + 52377.

It is an arithmetic number, because the mean of its divisors is an integer number (41398500).

Almost surely, 2^842226642 is an apocalyptic number.

842226642 is an abundant number, since it is smaller than the sum of its proper divisors (1144901358).

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

842226642 is a wasteful number, since it uses less digits than its factorization.

842226642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84975 (or 84972 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 842226642 is about 29021.1412938913. The cubic root of 842226642 is about 944.3717601467.

The spelling of 842226642 in words is "eight hundred forty-two million, two hundred twenty-six thousand, six hundred forty-two".