82013020 has 12 divisors (see below), whose sum is σ = 172227384. Its totient is φ = 32805200.

The previous prime is 82013003. The next prime is 82013093. The reversal of 82013020 is 2031028.

It is a happy number.

It is a super-2 number, since 2×82013020² = 13452270899040800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82012985 and 82013003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2050306 + ... + 2050345.

It is an arithmetic number, because the mean of its divisors is an integer number (14352282).

Almost surely, 2^82013020 is an apocalyptic number.

It is an amenable number.

82013020 is an abundant number, since it is smaller than the sum of its proper divisors (90214364).

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

82013020 is a wasteful number, since it uses less digits than its factorization.

82013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100660 (or 4100658 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 82013020 is about 9056.1040188372. The cubic root of 82013020 is about 434.4711413230.

Adding to 82013020 its reverse (2031028), we get a palindrome (84044048).

The spelling of 82013020 in words is "eighty-two million, thirteen thousand, twenty".