27227540 has 48 divisors (see below), whose sum is σ = 61426512. Its totient is φ = 10100736.

The previous prime is 27227537. The next prime is 27227573. The reversal of 27227540 is 4572272.

It can be written as a sum of positive squares in 8 ways, for example, as 16 + 27227524 = 4^2 + 5218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24272 + ... + 25368.

It is an arithmetic number, because the mean of its divisors is an integer number (1279719).

Almost surely, 2^27227540 is an apocalyptic number.

27227540 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 27227540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30713256).

27227540 is an abundant number, since it is smaller than the sum of its proper divisors (34198972).

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

27227540 is a wasteful number, since it uses less digits than its factorization.

27227540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 27227540 is about 5218.0015331542. The cubic root of 27227540 is about 300.8403843895.

The spelling of 27227540 in words is "twenty-seven million, two hundred twenty-seven thousand, five hundred forty".