80740 has 24 divisors (see below), whose sum is σ = 185472. Its totient is φ = 29280.

The previous prime is 80737. The next prime is 80747. The reversal of 80740 is 4708.

It is a happy number.

80740 is a modest number, since divided by 740 gives 80 as remainder.

It is not an unprimeable number, because it can be changed into a prime (80747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37 + ... + 403.

It is an arithmetic number, because the mean of its divisors is an integer number (7728).

2⁸⁰⁷⁴⁰ 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 80740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92736).

80740 is an abundant number, since it is smaller than the sum of its proper divisors (104732).

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

80740 is a wasteful number, since it uses less digits than its factorization.

80740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 80740 is about 284.1478488393. The cubic root of 80740 is about 43.2211430569.

It can be divided in two parts, 80 and 740, that added together give a triangular number (820 = T₄₀).

The spelling of 80740 in words is "eighty thousand, seven hundred forty".