27949240 has 32 divisors (see below), whose sum is σ = 68603760. Its totient is φ = 10163200.

The previous prime is 27949237. The next prime is 27949267. The reversal of 27949240 is 4294972.

It is a self number, because there is not a number n which added to its sum of digits gives 27949240.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 31321 + ... + 32200.

Almost surely, 2^27949240 is an apocalyptic number.

27949240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27949240 is an abundant number, since it is smaller than the sum of its proper divisors (40654520).

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

27949240 is a wasteful number, since it uses less digits than its factorization.

27949240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63543 (or 63539 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 27949240 is about 5286.7040772111. The cubic root of 27949240 is about 303.4752894577.

The spelling of 27949240 in words is "twenty-seven million, nine hundred forty-nine thousand, two hundred forty".