27804224 has 56 divisors (see below), whose sum is σ = 64300608. Its totient is φ = 11681280.

The previous prime is 27804221. The next prime is 27804233. The reversal of 27804224 is 42240872.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (27804221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23159 + ... + 24329.

Almost surely, 2^27804224 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 27804224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32150304).

27804224 is an abundant number, since it is smaller than the sum of its proper divisors (36496384).

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

27804224 is a wasteful number, since it uses less digits than its factorization.

27804224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1233 counting only the distinct ones).

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

The square root of 27804224 is about 5272.9710790028. The cubic root of 27804224 is about 302.9495136032.

The spelling of 27804224 in words is "twenty-seven million, eight hundred four thousand, two hundred twenty-four".