27540340 has 24 divisors (see below), whose sum is σ = 61237512. Its totient is φ = 10368000.

The previous prime is 27540319. The next prime is 27540347. The reversal of 27540340 is 4304572.

It can be written as a sum of positive squares in 4 ways, for example, as 10942864 + 16597476 = 3308^2 + 4074^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27540347) 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 7 ways as a sum of consecutive naturals, for example, 40161 + ... + 40840.

It is an arithmetic number, because the mean of its divisors is an integer number (2551563).

Almost surely, 2^27540340 is an apocalyptic number.

27540340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27540340 is an abundant number, since it is smaller than the sum of its proper divisors (33697172).

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

27540340 is a wasteful number, since it uses less digits than its factorization.

27540340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81027 (or 81025 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 27540340 is about 5247.8890994380. The cubic root of 27540340 is about 301.9880556070.

It can be divided in two parts, 27540 and 340, that multiplied together give a square (9363600 = 3060²).

The spelling of 27540340 in words is "twenty-seven million, five hundred forty thousand, three hundred forty".