80820480 has 144 divisors (see below), whose sum is σ = 278147520. Its totient is φ = 19881984.

The previous prime is 80820463. The next prime is 80820511. The reversal of 80820480 is 8402808.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49111 + ... + 50729.

It is an arithmetic number, because the mean of its divisors is an integer number (1931580).

Almost surely, 2^80820480 is an apocalyptic number.

80820480 is a gapful number since it is divisible by the number (80) 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 80820480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139073760).

80820480 is an abundant number, since it is smaller than the sum of its proper divisors (197327040).

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

80820480 is a wasteful number, since it uses less digits than its factorization.

80820480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 80820480 is about 8990.0211345692. The cubic root of 80820480 is about 432.3549894201.

The spelling of 80820480 in words is "eighty million, eight hundred twenty thousand, four hundred eighty".