80081280 has 96 divisors (see below), whose sum is σ = 276550560. Its totient is φ = 21353472.

The previous prime is 80081269. The next prime is 80081291. The reversal of 80081280 is 8218008.

It is an interprime number because it is at equal distance from previous prime (80081269) and next prime (80081291).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×80081280² = 12826022812876800, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1192 + ... + 12711.

It is an arithmetic number, because the mean of its divisors is an integer number (2880735).

Almost surely, 2^80081280 is an apocalyptic number.

80081280 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 80081280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138275280).

80081280 is an abundant number, since it is smaller than the sum of its proper divisors (196469280).

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

80081280 is a wasteful number, since it uses less digits than its factorization.

80081280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13928 (or 13913 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 80081280 is about 8948.8144466181. The cubic root of 80081280 is about 431.0328156566.

Adding to 80081280 its reverse (8218008), we get a palindrome (88299288).

The spelling of 80081280 in words is "eighty million, eighty-one thousand, two hundred eighty".