27243424 has 48 divisors (see below), whose sum is σ = 59143392. Its totient is φ = 12273408.

The previous prime is 27243413. The next prime is 27243439. The reversal of 27243424 is 42434272.

It is a junction number, because it is equal to n+sod(n) for n = 27243392 and 27243401.

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, 17127 + ... + 18649.

It is an arithmetic number, because the mean of its divisors is an integer number (1232154).

Almost surely, 2^27243424 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 27243424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29571696).

27243424 is an abundant number, since it is smaller than the sum of its proper divisors (31899968).

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

27243424 is a wasteful number, since it uses less digits than its factorization.

27243424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589 (or 1581 counting only the distinct ones).

The product of its digits is 10752, while the sum is 28.

The square root of 27243424 is about 5219.5233498855. The cubic root of 27243424 is about 300.8988744297.

Adding to 27243424 its reverse (42434272), we get a palindrome (69677696).

The spelling of 27243424 in words is "twenty-seven million, two hundred forty-three thousand, four hundred twenty-four".