842639352 has 64 divisors (see below), whose sum is σ = 2162160000. Its totient is φ = 273512064.

The previous prime is 842639333. The next prime is 842639353. The reversal of 842639352 is 253936248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842639353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400399 + ... + 402497.

It is an arithmetic number, because the mean of its divisors is an integer number (33783750).

Almost surely, 2^842639352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842639352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081080000).

842639352 is an abundant number, since it is smaller than the sum of its proper divisors (1319520648).

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

842639352 is a wasteful number, since it uses less digits than its factorization.

842639352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540 (or 2536 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 842639352 is about 29028.2509290519. The cubic root of 842639352 is about 944.5259894261.

The spelling of 842639352 in words is "eight hundred forty-two million, six hundred thirty-nine thousand, three hundred fifty-two".