80549280 has 288 divisors, whose sum is σ = 321729408. Its totient is φ = 17971200.

The previous prime is 80549263. The next prime is 80549291. The reversal of 80549280 is 8294508.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 614815 + ... + 614945.

It is an arithmetic number, because the mean of its divisors is an integer number (1117116).

Almost surely, 2^80549280 is an apocalyptic number.

80549280 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 80549280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160864704).

80549280 is an abundant number, since it is smaller than the sum of its proper divisors (241180128).

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

80549280 is a wasteful number, since it uses less digits than its factorization.

80549280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 80549280 is about 8974.9250693251. The cubic root of 80549280 is about 431.8708461647.

The spelling of 80549280 in words is "eighty million, five hundred forty-nine thousand, two hundred eighty".