27004320 has 384 divisors, whose sum is σ = 116121600. Its totient is φ = 5723136.

The previous prime is 27004319. The next prime is 27004343. The reversal of 27004320 is 2340072.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 27004293 and 27004302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 574537 + ... + 574583.

It is an arithmetic number, because the mean of its divisors is an integer number (302400).

Almost surely, 2^27004320 is an apocalyptic number.

27004320 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 27004320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58060800).

27004320 is an abundant number, since it is smaller than the sum of its proper divisors (89117280).

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

27004320 is a wasteful number, since it uses less digits than its factorization.

27004320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 27004320 is about 5196.5680982741. The cubic root of 27004320 is about 300.0159991467.

Adding to 27004320 its reverse (2340072), we get a palindrome (29344392).

The spelling of 27004320 in words is "twenty-seven million, four thousand, three hundred twenty".