80008020 has 96 divisors (see below), whose sum is σ = 250387200. Its totient is φ = 21209472.

The previous prime is 80008009. The next prime is 80008051. The reversal of 80008020 is 2080008.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 80007984 and 80008002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123337 + ... + 123983.

It is an arithmetic number, because the mean of its divisors is an integer number (2608200).

Almost surely, 2^80008020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80008020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125193600).

80008020 is an abundant number, since it is smaller than the sum of its proper divisors (170379180).

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

80008020 is a wasteful number, since it uses less digits than its factorization.

80008020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 80008020 is about 8944.7202303929. The cubic root of 80008020 is about 430.9013363304.

Adding to 80008020 its reverse (2080008), we get a palindrome (82088028).

The spelling of 80008020 in words is "eighty million, eight thousand, twenty".