80040220 has 48 divisors (see below), whose sum is σ = 183244320. Its totient is φ = 29189376.

The previous prime is 80040211. The next prime is 80040221. The reversal of 80040220 is 2204008.

It is a junction number, because it is equal to n+sod(n) for n = 80040194 and 80040203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80040221) 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, 19726 + ... + 23434.

It is an arithmetic number, because the mean of its divisors is an integer number (3817590).

Almost surely, 2^80040220 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 80040220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91622160).

80040220 is an abundant number, since it is smaller than the sum of its proper divisors (103204100).

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

80040220 is a wasteful number, since it uses less digits than its factorization.

80040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814 (or 3812 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 80040220 is about 8946.5199938300. The cubic root of 80040220 is about 430.9591353780.

Adding to 80040220 its reverse (2204008), we get a palindrome (82244228).

The spelling of 80040220 in words is "eighty million, forty thousand, two hundred twenty".