80988180 has 216 divisors, whose sum is σ = 287394912. Its totient is φ = 16982784.

The previous prime is 80988157. The next prime is 80988217. The reversal of 80988180 is 8188908.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 496779 + ... + 496941.

It is an arithmetic number, because the mean of its divisors is an integer number (1330532).

Almost surely, 2^80988180 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 80988180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143697456).

80988180 is an abundant number, since it is smaller than the sum of its proper divisors (206406732).

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

80988180 is a wasteful number, since it uses less digits than its factorization.

80988180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 80988180 is about 8999.3433093754. The cubic root of 80988180 is about 432.6538239080.

The spelling of 80988180 in words is "eighty million, nine hundred eighty-eight thousand, one hundred eighty".