27894490 has 32 divisors (see below), whose sum is σ = 54366480. Its totient is φ = 10243584.

The previous prime is 27894463. The next prime is 27894509. The reversal of 27894490 is 9449872.

It can be written as a sum of positive squares in 8 ways, for example, as 6466849 + 21427641 = 2543^2 + 4629^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 29302 + ... + 30238.

Almost surely, 2^27894490 is an apocalyptic number.

27894490 is a deficient number, since it is larger than the sum of its proper divisors (26471990).

27894490 is a wasteful number, since it uses less digits than its factorization.

27894490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 27894490 is about 5281.5234544589. The cubic root of 27894490 is about 303.2769998300.

The spelling of 27894490 in words is "twenty-seven million, eight hundred ninety-four thousand, four hundred ninety".