27040381 has 2 divisors, whose sum is σ = 27040382. Its totient is φ = 27040380.

The previous prime is 27040373. The next prime is 27040411. The reversal of 27040381 is 18304072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16736281 + 10304100 = 4091^2 + 3210^2 .

It is a cyclic number.

It is not a de Polignac number, because 27040381 - 2³ = 27040373 is a prime.

It is a super-2 number, since 2×27040381² = 1462364409250322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27040301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13520190 + 13520191.

It is an arithmetic number, because the mean of its divisors is an integer number (13520191).

Almost surely, 2^27040381 is an apocalyptic number.

It is an amenable number.

27040381 is a deficient number, since it is larger than the sum of its proper divisors (1).

27040381 is an equidigital number, since it uses as much as digits as its factorization.

27040381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 27040381 is about 5200.0366344863. The cubic root of 27040381 is about 300.1494847612.

The spelling of 27040381 in words is "twenty-seven million, forty thousand, three hundred eighty-one".