27044420 has 96 divisors (see below), whose sum is σ = 65197440. Its totient is φ = 9354240.

The previous prime is 27044419. The next prime is 27044441. The reversal of 27044420 is 2444072.

It is a congruent number.

It is an unprimeable number.

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, 458351 + ... + 458409.

It is an arithmetic number, because the mean of its divisors is an integer number (679140).

Almost surely, 2^27044420 is an apocalyptic number.

27044420 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 27044420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32598720).

27044420 is an abundant number, since it is smaller than the sum of its proper divisors (38153020).

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

27044420 is a wasteful number, since it uses less digits than its factorization.

27044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 27044420 is about 5200.4249826336. The cubic root of 27044420 is about 300.1644283797.

Adding to 27044420 its reverse (2444072), we get a palindrome (29488492).

The spelling of 27044420 in words is "twenty-seven million, forty-four thousand, four hundred twenty".