27742512 has 40 divisors (see below), whose sum is σ = 81907456. Its totient is φ = 7926336.

The previous prime is 27742493. The next prime is 27742513. The reversal of 27742512 is 21524772.

It is a self number, because there is not a number n which added to its sum of digits gives 27742512.

It is not an unprimeable number, because it can be changed into a prime (27742513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40948 + ... + 41619.

Almost surely, 2^27742512 is an apocalyptic number.

It is an amenable number.

27742512 is an abundant number, since it is smaller than the sum of its proper divisors (54164944).

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

27742512 is a wasteful number, since it uses less digits than its factorization.

27742512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82585 (or 82579 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 27742512 is about 5267.1160989673. The cubic root of 27742512 is about 302.7252135206.

The spelling of 27742512 in words is "twenty-seven million, seven hundred forty-two thousand, five hundred twelve".