834418128 has 40 divisors (see below), whose sum is σ = 2185949376. Its totient is φ = 274220800.

The previous prime is 834418121. The next prime is 834418129. The reversal of 834418128 is 821814438.

It is a happy number.

834418128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×834418128² = 1392507224670048768, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834418121) 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, 119013 + ... + 125828.

Almost surely, 2^834418128 is an apocalyptic number.

It is an amenable number.

834418128 is an abundant number, since it is smaller than the sum of its proper divisors (1351531248).

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

834418128 is a wasteful number, since it uses less digits than its factorization.

834418128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244923 (or 244917 counting only the distinct ones).

The product of its digits is 49152, while the sum is 39.

The square root of 834418128 is about 28886.2965435170. The cubic root of 834418128 is about 941.4441841725. Note that the first 3 decimals are identical.

The spelling of 834418128 in words is "eight hundred thirty-four million, four hundred eighteen thousand, one hundred twenty-eight".