27143320 has 48 divisors (see below), whose sum is σ = 62696160. Its totient is φ = 10575936.

The previous prime is 27143293. The next prime is 27143341. The reversal of 27143320 is 2334172.

It is a junction number, because it is equal to n+sod(n) for n = 27143291 and 27143300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73777 + ... + 74143.

It is an arithmetic number, because the mean of its divisors is an integer number (1306170).

Almost surely, 2^27143320 is an apocalyptic number.

27143320 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 27143320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31348080).

27143320 is an abundant number, since it is smaller than the sum of its proper divisors (35552840).

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

27143320 is a wasteful number, since it uses less digits than its factorization.

27143320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 27143320 is about 5209.9251434162. The cubic root of 27143320 is about 300.5298783602.

Adding to 27143320 its reverse (2334172), we get a palindrome (29477492).

The spelling of 27143320 in words is "twenty-seven million, one hundred forty-three thousand, three hundred twenty".