834518384 has 80 divisors (see below), whose sum is σ = 1994872320. Its totient is φ = 330274560.

The previous prime is 834518383. The next prime is 834518393. The reversal of 834518384 is 483815438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834518381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69119 + ... + 80289.

It is an arithmetic number, because the mean of its divisors is an integer number (24935904).

Almost surely, 2^834518384 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 834518384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997436160).

834518384 is an abundant number, since it is smaller than the sum of its proper divisors (1160353936).

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

834518384 is a wasteful number, since it uses less digits than its factorization.

834518384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11238 (or 11232 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 834518384 is about 28888.0318471162. The cubic root of 834518384 is about 941.4818877510.

The spelling of 834518384 in words is "eight hundred thirty-four million, five hundred eighteen thousand, three hundred eighty-four".