27321140 has 96 divisors (see below), whose sum is σ = 72624384. Its totient is φ = 8386560.

The previous prime is 27321127. The next prime is 27321149. The reversal of 27321140 is 4112372.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27321149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173942 + ... + 174098.

It is an arithmetic number, because the mean of its divisors is an integer number (756504).

Almost surely, 2^27321140 is an apocalyptic number.

27321140 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 27321140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36312192).

27321140 is an abundant number, since it is smaller than the sum of its proper divisors (45303244).

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

27321140 is a wasteful number, since it uses less digits than its factorization.

27321140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 27321140 is about 5226.9627892305. The cubic root of 27321140 is about 301.1847226892.

The spelling of 27321140 in words is "twenty-seven million, three hundred twenty-one thousand, one hundred forty".