80507844 has 48 divisors (see below), whose sum is σ = 211323840. Its totient is φ = 26833032.

The previous prime is 80507813. The next prime is 80507863. The reversal of 80507844 is 44870508.

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

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 80507799 and 80507808.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4147 + ... + 13349.

It is an arithmetic number, because the mean of its divisors is an integer number (4402580).

Almost surely, 2^80507844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80507844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105661920).

80507844 is an abundant number, since it is smaller than the sum of its proper divisors (130815996).

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

80507844 is an equidigital number, since it uses as much as digits as its factorization.

80507844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9228 (or 9208 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 80507844 is about 8972.6163408451. The cubic root of 80507844 is about 431.7967794164.

The spelling of 80507844 in words is "eighty million, five hundred seven thousand, eight hundred forty-four".