82130460 has 24 divisors (see below), whose sum is σ = 229965456. Its totient is φ = 21901440.

The previous prime is 82130441. The next prime is 82130467. The reversal of 82130460 is 6403128.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 82130460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82130467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684361 + ... + 684480.

It is an arithmetic number, because the mean of its divisors is an integer number (9581894).

Almost surely, 2^82130460 is an apocalyptic number.

It is an amenable number.

82130460 is an abundant number, since it is smaller than the sum of its proper divisors (147834996).

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

82130460 is a wasteful number, since it uses less digits than its factorization.

82130460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368853 (or 1368851 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 82130460 is about 9062.5857237325. The cubic root of 82130460 is about 434.6784253011.

Adding to 82130460 its reverse (6403128), we get a palindrome (88533588).

The spelling of 82130460 in words is "eighty-two million, one hundred thirty thousand, four hundred sixty".