80540880 has 160 divisors (see below), whose sum is σ = 287981568. Its totient is φ = 18240000.

The previous prime is 80540879. The next prime is 80540881. The reversal of 80540880 is 8804508.

It is an interprime number because it is at equal distance from previous prime (80540879) and next prime (80540881).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80540881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320755 + ... + 321005.

Almost surely, 2^80540880 is an apocalyptic number.

80540880 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 80540880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143990784).

80540880 is an abundant number, since it is smaller than the sum of its proper divisors (207440688).

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

80540880 is a wasteful number, since it uses less digits than its factorization.

80540880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 80540880 is about 8974.4570866432. The cubic root of 80540880 is about 431.8558332384.

The spelling of 80540880 in words is "eighty million, five hundred forty thousand, eight hundred eighty".