82486020 has 48 divisors (see below), whose sum is σ = 235327680. Its totient is φ = 21580416.

The previous prime is 82486007. The next prime is 82486021. The reversal of 82486020 is 2068428.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (82486021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9790 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (4902660).

Almost surely, 2^82486020 is an apocalyptic number.

It is an amenable number.

82486020 is an abundant number, since it is smaller than the sum of its proper divisors (152841660).

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

82486020 is a wasteful number, since it uses less digits than its factorization.

82486020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26004 (or 26002 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 82486020 is about 9082.1814560159. The cubic root of 82486020 is about 435.3047936553.

The spelling of 82486020 in words is "eighty-two million, four hundred eighty-six thousand, twenty".