27748542 has 8 divisors (see below), whose sum is σ = 55497096. Its totient is φ = 9249512.

The previous prime is 27748529. The next prime is 27748543. The reversal of 27748542 is 24584772.

It is a sphenic number, since it is the product of 3 distinct primes.

27748542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 27748542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27748543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2312373 + ... + 2312384.

It is an arithmetic number, because the mean of its divisors is an integer number (6937137).

Almost surely, 2^27748542 is an apocalyptic number.

27748542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27748542 is a wasteful number, since it uses less digits than its factorization.

27748542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4624762.

The product of its digits is 125440, while the sum is 39.

The square root of 27748542 is about 5267.6884873728. The cubic root of 27748542 is about 302.7471449736.

The spelling of 27748542 in words is "twenty-seven million, seven hundred forty-eight thousand, five hundred forty-two".