27160220 has 72 divisors (see below), whose sum is σ = 62716416. Its totient is φ = 9870336.

The previous prime is 27160181. The next prime is 27160223. The reversal of 27160220 is 2206172.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 27160192 and 27160201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27160223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213797 + ... + 213923.

Almost surely, 2^27160220 is an apocalyptic number.

27160220 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 27160220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31358208).

27160220 is an abundant number, since it is smaller than the sum of its proper divisors (35556196).

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

27160220 is a wasteful number, since it uses less digits than its factorization.

27160220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 27160220 is about 5211.5467953382. The cubic root of 27160220 is about 300.5922374873.

Adding to 27160220 its reverse (2206172), we get a palindrome (29366392).

The spelling of 27160220 in words is "twenty-seven million, one hundred sixty thousand, two hundred twenty".