80630280 has 96 divisors (see below), whose sum is σ = 264864600. Its totient is φ = 21270528.

The previous prime is 80630261. The next prime is 80630293. The reversal of 80630280 is 8203608.

80630280 is a `hidden beast` number, since 8 + 0 + 630 + 28 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 73307844 + 7322436 = 8562^2 + 2706^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33766 + ... + 36074.

Almost surely, 2^80630280 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 80630280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132432300).

80630280 is an abundant number, since it is smaller than the sum of its proper divisors (184234320).

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

80630280 is a wasteful number, since it uses less digits than its factorization.

80630280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423 (or 2416 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 80630280 is about 8979.4365079330. The cubic root of 80630280 is about 432.0155601391.

Adding to 80630280 its reverse (8203608), we get a palindrome (88833888).

The spelling of 80630280 in words is "eighty million, six hundred thirty thousand, two hundred eighty".