27009144 has 24 divisors (see below), whose sum is σ = 73149960. Its totient is φ = 9003024.

The previous prime is 27009137. The next prime is 27009167. The reversal of 27009144 is 44190072.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×27009144² = 1458987719225472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187492 + ... + 187635.

It is an arithmetic number, because the mean of its divisors is an integer number (3047915).

Almost surely, 2^27009144 is an apocalyptic number.

27009144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27009144 is an abundant number, since it is smaller than the sum of its proper divisors (46140816).

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

27009144 is a wasteful number, since it uses less digits than its factorization.

27009144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375139 (or 375132 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 27009144 is about 5197.0322300328. The cubic root of 27009144 is about 300.0338628442.

The spelling of 27009144 in words is "twenty-seven million, nine thousand, one hundred forty-four".