842133386 has 16 divisors (see below), whose sum is σ = 1341796104. Its totient is φ = 395026944.

The previous prime is 842133367. The next prime is 842133389. The reversal of 842133386 is 683331248.

It can be written as a sum of positive squares in 4 ways, for example, as 738480625 + 103652761 = 27175^2 + 10181^2 .

It is not an unprimeable number, because it can be changed into a prime (842133389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28925 + ... + 50208.

Almost surely, 2^842133386 is an apocalyptic number.

842133386 is a deficient number, since it is larger than the sum of its proper divisors (499662718).

842133386 is a wasteful number, since it uses less digits than its factorization.

842133386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79465.

The product of its digits is 82944, while the sum is 38.

The square root of 842133386 is about 29019.5345586383. The cubic root of 842133386 is about 944.3369035024.

The spelling of 842133386 in words is "eight hundred forty-two million, one hundred thirty-three thousand, three hundred eighty-six".