80067840 has 144 divisors (see below), whose sum is σ = 264902400. Its totient is φ = 20586496.

The previous prime is 80067839. The next prime is 80067847. The reversal of 80067840 is 4876008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80067847) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 111001 + ... + 111719.

It is an arithmetic number, because the mean of its divisors is an integer number (1839600).

Almost surely, 2^80067840 is an apocalyptic number.

80067840 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 80067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132451200).

80067840 is an abundant number, since it is smaller than the sum of its proper divisors (184834560).

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

80067840 is a wasteful number, since it uses less digits than its factorization.

80067840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 80067840 is about 8948.0634776470. The cubic root of 80067840 is about 431.0087009690.

The spelling of 80067840 in words is "eighty million, sixty-seven thousand, eight hundred forty".