80502120 has 128 divisors (see below), whose sum is σ = 270864000. Its totient is φ = 21265920.

The previous prime is 80502113. The next prime is 80502181. The reversal of 80502120 is 2120508.

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 = 80502093 and 80502102.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 141196 + ... + 141764.

It is an arithmetic number, because the mean of its divisors is an integer number (2116125).

Almost surely, 2^80502120 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 80502120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135432000).

80502120 is an abundant number, since it is smaller than the sum of its proper divisors (190361880).

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

80502120 is a wasteful number, since it uses less digits than its factorization.

80502120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 80502120 is about 8972.2973646664. The cubic root of 80502120 is about 431.7865457827.

Adding to 80502120 its reverse (2120508), we get a palindrome (82622628).

The spelling of 80502120 in words is "eighty million, five hundred two thousand, one hundred twenty".