80257980 has 96 divisors (see below), whose sum is σ = 246597120. Its totient is φ = 19342080.

The previous prime is 80257973. The next prime is 80257981. The reversal of 80257980 is 8975208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80257981) 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 31 ways as a sum of consecutive naturals, for example, 182601 + ... + 183039.

It is an arithmetic number, because the mean of its divisors is an integer number (2568720).

Almost surely, 2^80257980 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 80257980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123298560).

80257980 is an abundant number, since it is smaller than the sum of its proper divisors (166339140).

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

80257980 is a wasteful number, since it uses less digits than its factorization.

80257980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 80257980 is about 8958.6818226790. The cubic root of 80257980 is about 431.3496085810.

The spelling of 80257980 in words is "eighty million, two hundred fifty-seven thousand, nine hundred eighty".