27724230 has 96 divisors (see below), whose sum is σ = 78474240. Its totient is φ = 6765120.

The previous prime is 27724217. The next prime is 27724237. The reversal of 27724230 is 3242772.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27724194 and 27724203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27724237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52749 + ... + 53271.

It is an arithmetic number, because the mean of its divisors is an integer number (817440).

Almost surely, 2^27724230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27724230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39237120).

27724230 is an abundant number, since it is smaller than the sum of its proper divisors (50750010).

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

27724230 is a wasteful number, since it uses less digits than its factorization.

27724230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 27724230 is about 5265.3803281434. The cubic root of 27724230 is about 302.6587014169.

The spelling of 27724230 in words is "twenty-seven million, seven hundred twenty-four thousand, two hundred thirty".