27808130 has 16 divisors (see below), whose sum is σ = 57205440. Its totient is φ = 9534192.

The previous prime is 27808117. The next prime is 27808133. The reversal of 27808130 is 3180872.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27808093 and 27808102.

It is not an unprimeable number, because it can be changed into a prime (27808133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198560 + ... + 198699.

It is an arithmetic number, because the mean of its divisors is an integer number (3575340).

Almost surely, 2^27808130 is an apocalyptic number.

27808130 is an abundant number, since it is smaller than the sum of its proper divisors (29397310).

27808130 is a wasteful number, since it uses less digits than its factorization.

27808130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397273.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 27808130 is about 5273.3414454215. The cubic root of 27808130 is about 302.9636992823.

The spelling of 27808130 in words is "twenty-seven million, eight hundred eight thousand, one hundred thirty".