27448220 has 12 divisors (see below), whose sum is σ = 57641304. Its totient is φ = 10979280.

The previous prime is 27448163. The next prime is 27448241. The reversal of 27448220 is 2284472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686186 + ... + 686225.

It is an arithmetic number, because the mean of its divisors is an integer number (4803442).

Almost surely, 2^27448220 is an apocalyptic number.

27448220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27448220 is an abundant number, since it is smaller than the sum of its proper divisors (30193084).

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

27448220 is a wasteful number, since it uses less digits than its factorization.

27448220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372420 (or 1372418 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 27448220 is about 5239.1048853788. The cubic root of 27448220 is about 301.6509717151.

The spelling of 27448220 in words is "twenty-seven million, four hundred forty-eight thousand, two hundred twenty".