80868020 has 12 divisors (see below), whose sum is σ = 169822884. Its totient is φ = 32347200.

The previous prime is 80868019. The next prime is 80868041. The reversal of 80868020 is 2086808.

It can be written as a sum of positive squares in 2 ways, for example, as 23290276 + 57577744 = 4826^2 + 7588^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021681 + ... + 2021720.

It is an arithmetic number, because the mean of its divisors is an integer number (14151907).

Almost surely, 2^80868020 is an apocalyptic number.

It is an amenable number.

80868020 is an abundant number, since it is smaller than the sum of its proper divisors (88954864).

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

80868020 is a wasteful number, since it uses less digits than its factorization.

80868020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043410 (or 4043408 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 80868020 is about 8992.6647885930. The cubic root of 80868020 is about 432.4397456906.

The spelling of 80868020 in words is "eighty million, eight hundred sixty-eight thousand, twenty".