27472320 has 84 divisors (see below), whose sum is σ = 94503240. Its totient is φ = 7325184.

The previous prime is 27472307. The next prime is 27472321. The reversal of 27472320 is 2327472.

27472320 is a `hidden beast` number, since 274 + 72 + 320 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27472321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1890 + ... + 7649.

Almost surely, 2^27472320 is an apocalyptic number.

27472320 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 27472320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47251620).

27472320 is an abundant number, since it is smaller than the sum of its proper divisors (67030920).

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

27472320 is a wasteful number, since it uses less digits than its factorization.

27472320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562 (or 9549 counting only the distinct ones).

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

The square root of 27472320 is about 5241.4043919545. The cubic root of 27472320 is about 301.7392307691.

Adding to 27472320 its reverse (2327472), we get a palindrome (29799792).

The spelling of 27472320 in words is "twenty-seven million, four hundred seventy-two thousand, three hundred twenty".