27740542 has 4 divisors (see below), whose sum is σ = 41610816. Its totient is φ = 13870270.

The previous prime is 27740539. The next prime is 27740563. The reversal of 27740542 is 24504772.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6935134 + ... + 6935137.

It is an arithmetic number, because the mean of its divisors is an integer number (10402704).

Almost surely, 2^27740542 is an apocalyptic number.

27740542 is a deficient number, since it is larger than the sum of its proper divisors (13870274).

27740542 is a wasteful number, since it uses less digits than its factorization.

27740542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13870273.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 27740542 is about 5266.9290862893. The cubic root of 27740542 is about 302.7180478298.

It can be divided in two parts, 27740 and 542, that added together give a palindrome (28282).

The spelling of 27740542 in words is "twenty-seven million, seven hundred forty thousand, five hundred forty-two".