27080720 has 40 divisors (see below), whose sum is σ = 63370944. Its totient is φ = 10762112.

The previous prime is 27080717. The next prime is 27080741. The reversal of 27080720 is 2708072.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 27080720.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12347 + ... + 14373.

Almost surely, 2^27080720 is an apocalyptic number.

27080720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27080720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31685472).

27080720 is an abundant number, since it is smaller than the sum of its proper divisors (36290224).

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

27080720 is a wasteful number, since it uses less digits than its factorization.

27080720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207 (or 2201 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 27080720 is about 5203.9139116630. The cubic root of 27080720 is about 300.2986655273.

Adding to 27080720 its reverse (2708072), we get a palindrome (29788792).

The spelling of 27080720 in words is "twenty-seven million, eighty thousand, seven hundred twenty".