27940441 has 4 divisors (see below), whose sum is σ = 27958500. Its totient is φ = 27922384.

The previous prime is 27940421. The next prime is 27940447. The reversal of 27940441 is 14404972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4862025 + 23078416 = 2205^2 + 4804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27940441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27940447) 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 3 ways as a sum of consecutive naturals, for example, 6466 + ... + 9883.

It is an arithmetic number, because the mean of its divisors is an integer number (6989625).

Almost surely, 2^27940441 is an apocalyptic number.

It is an amenable number.

27940441 is a deficient number, since it is larger than the sum of its proper divisors (18059).

27940441 is a wasteful number, since it uses less digits than its factorization.

27940441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18058.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 27940441 is about 5285.8718296985. The cubic root of 27940441 is about 303.4434393449.

The spelling of 27940441 in words is "twenty-seven million, nine hundred forty thousand, four hundred forty-one".