842281538 has 8 divisors (see below), whose sum is σ = 1443911232. Its totient is φ = 360977796.

The previous prime is 842281537. The next prime is 842281553. The reversal of 842281538 is 835182248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 842281495 and 842281504.

It is not an unprimeable number, because it can be changed into a prime (842281537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30081470 + ... + 30081497.

It is an arithmetic number, because the mean of its divisors is an integer number (180488904).

Almost surely, 2^842281538 is an apocalyptic number.

842281538 is a deficient number, since it is larger than the sum of its proper divisors (601629694).

842281538 is a wasteful number, since it uses less digits than its factorization.

842281538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60162976.

The product of its digits is 122880, while the sum is 41.

The square root of 842281538 is about 29022.0870717459. The cubic root of 842281538 is about 944.3922776271.

The spelling of 842281538 in words is "eight hundred forty-two million, two hundred eighty-one thousand, five hundred thirty-eight".