82027940 has 24 divisors (see below), whose sum is σ = 181325760. Its totient is φ = 31084128.

The previous prime is 82027937. The next prime is 82027949. The reversal of 82027940 is 4972028.

It is a junction number, because it is equal to n+sod(n) for n = 82027897 and 82027906.

It is not an unprimeable number, because it can be changed into a prime (82027949) 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, 107552 + ... + 108311.

It is an arithmetic number, because the mean of its divisors is an integer number (7555240).

Almost surely, 2^82027940 is an apocalyptic number.

It is an amenable number.

82027940 is an abundant number, since it is smaller than the sum of its proper divisors (99297820).

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

82027940 is a wasteful number, since it uses less digits than its factorization.

82027940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215891 (or 215889 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 82027940 is about 9056.9277351649. The cubic root of 82027940 is about 434.4974863934.

Adding to 82027940 its reverse (4972028), we get a palindrome (86999968).

The spelling of 82027940 in words is "eighty-two million, twenty-seven thousand, nine hundred forty".