80589140 has 12 divisors (see below), whose sum is σ = 169237236. Its totient is φ = 32235648.

The previous prime is 80589137. The next prime is 80589143. The reversal of 80589140 is 4198508.

It is an interprime number because it is at equal distance from previous prime (80589137) and next prime (80589143).

It can be written as a sum of positive squares in 2 ways, for example, as 15335056 + 65254084 = 3916^2 + 8078^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80589140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80589143) 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 3 ways as a sum of consecutive naturals, for example, 2014709 + ... + 2014748.

It is an arithmetic number, because the mean of its divisors is an integer number (14103103).

Almost surely, 2^80589140 is an apocalyptic number.

It is an amenable number.

80589140 is an abundant number, since it is smaller than the sum of its proper divisors (88648096).

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

80589140 is a wasteful number, since it uses less digits than its factorization.

80589140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029466 (or 4029464 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 80589140 is about 8977.1454260249. The cubic root of 80589140 is about 431.9420718508.

The spelling of 80589140 in words is "eighty million, five hundred eighty-nine thousand, one hundred forty".