27040209 has 24 divisors (see below), whose sum is σ = 43392960. Its totient is φ = 14916384.

The previous prime is 27040201. The next prime is 27040213. The reversal of 27040209 is 90204072.

It is not a de Polignac number, because 27040209 - 2³ = 27040201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27040201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1092 + ... + 7434.

It is an arithmetic number, because the mean of its divisors is an integer number (1808040).

Almost surely, 2^27040209 is an apocalyptic number.

27040209 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

27040209 is a deficient number, since it is larger than the sum of its proper divisors (16352751).

27040209 is a wasteful number, since it uses less digits than its factorization.

27040209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6389 (or 6382 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 27040209 is about 5200.0200961150. The cubic root of 27040209 is about 300.1488483572.

The spelling of 27040209 in words is "twenty-seven million, forty thousand, two hundred nine".