1834738812 has 72 divisors (see below), whose sum is σ = 4817030400. Its totient is φ = 588390048.

The previous prime is 1834738777. The next prime is 1834738817. The reversal of 1834738812 is 2188374381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1834738817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90639 + ... + 109017.

It is an arithmetic number, because the mean of its divisors is an integer number (66903200).

Almost surely, 2^1834738812 is an apocalyptic number.

1834738812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1834738812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2408515200).

1834738812 is an abundant number, since it is smaller than the sum of its proper divisors (2982291588).

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

1834738812 is a wasteful number, since it uses less digits than its factorization.

1834738812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18495 (or 18490 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 1834738812 is about 42833.8512394111. The cubic root of 1834738812 is about 1224.2160886590.

The spelling of 1834738812 in words is "one billion, eight hundred thirty-four million, seven hundred thirty-eight thousand, eight hundred twelve".