80220504 has 128 divisors (see below), whose sum is σ = 257725440. Its totient is φ = 20224512.

The previous prime is 80220479. The next prime is 80220521. The reversal of 80220504 is 40502208.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 49434 + ... + 51030.

It is an arithmetic number, because the mean of its divisors is an integer number (2013480).

Almost surely, 2^80220504 is an apocalyptic number.

80220504 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80220504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128862720).

80220504 is an abundant number, since it is smaller than the sum of its proper divisors (177504936).

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

80220504 is a wasteful number, since it uses less digits than its factorization.

80220504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 80220504 is about 8956.5899761014. The cubic root of 80220504 is about 431.2824593925.

The spelling of 80220504 in words is "eighty million, two hundred twenty thousand, five hundred four".