82188234 has 48 divisors (see below), whose sum is σ = 189346248. Its totient is φ = 25675776.

The previous prime is 82188229. The next prime is 82188241. The reversal of 82188234 is 43288128.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71318025 + 10870209 = 8445^2 + 3297^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102724 + ... + 103520.

Almost surely, 2^82188234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82188234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94673124).

82188234 is an abundant number, since it is smaller than the sum of its proper divisors (107158014).

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

82188234 is a wasteful number, since it uses less digits than its factorization.

82188234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1156 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 82188234 is about 9065.7726642576. The cubic root of 82188234 is about 434.7803250718.

The spelling of 82188234 in words is "eighty-two million, one hundred eighty-eight thousand, two hundred thirty-four".