80592640 has 72 divisors (see below), whose sum is σ = 195733440. Its totient is φ = 31789056.

The previous prime is 80592637. The next prime is 80592649. The reversal of 80592640 is 4629508.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80592596 and 80592605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80592649) 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 7 ways as a sum of consecutive naturals, for example, 100722 + ... + 101518.

It is an arithmetic number, because the mean of its divisors is an integer number (2718520).

Almost surely, 2^80592640 is an apocalyptic number.

80592640 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 80592640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97866720).

80592640 is an abundant number, since it is smaller than the sum of its proper divisors (115140800).

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

80592640 is an equidigital number, since it uses as much as digits as its factorization.

80592640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 80592640 is about 8977.3403633816. The cubic root of 80592640 is about 431.9483248660.

The spelling of 80592640 in words is "eighty million, five hundred ninety-two thousand, six hundred forty".