27740216 has 16 divisors (see below), whose sum is σ = 59443440. Its totient is φ = 11888640.

The previous prime is 27740201. The next prime is 27740239. The reversal of 27740216 is 61204772.

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 3 ways as a sum of consecutive naturals, for example, 247625 + ... + 247736.

It is an arithmetic number, because the mean of its divisors is an integer number (3715215).

Almost surely, 2^27740216 is an apocalyptic number.

It is an amenable number.

27740216 is an abundant number, since it is smaller than the sum of its proper divisors (31703224).

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

27740216 is a wasteful number, since it uses less digits than its factorization.

27740216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495374 (or 495370 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 27740216 is about 5266.8981383733. The cubic root of 27740216 is about 302.7168620026.

Adding to 27740216 its reverse (61204772), we get a palindrome (88944988).

The spelling of 27740216 in words is "twenty-seven million, seven hundred forty thousand, two hundred sixteen".