80858280 has 128 divisors (see below), whose sum is σ = 251164800. Its totient is φ = 20815872.

The previous prime is 80858263. The next prime is 80858291. The reversal of 80858280 is 8285808.

It is a super-2 number, since 2×80858280² = 13076122889116800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 715504 + ... + 715616.

It is an arithmetic number, because the mean of its divisors is an integer number (1962225).

Almost surely, 2^80858280 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 80858280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125582400).

80858280 is an abundant number, since it is smaller than the sum of its proper divisors (170306520).

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

80858280 is a wasteful number, since it uses less digits than its factorization.

80858280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The square root of 80858280 is about 8992.1232197963. The cubic root of 80858280 is about 432.4223835235.

The spelling of 80858280 in words is "eighty million, eight hundred fifty-eight thousand, two hundred eighty".