27888542 has 32 divisors (see below), whose sum is σ = 48487680. Its totient is φ = 11897280.

The previous prime is 27888541. The next prime is 27888557. The reversal of 27888542 is 24588872.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 27888493 and 27888502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27888541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57023 + ... + 57509.

It is an arithmetic number, because the mean of its divisors is an integer number (1515240).

Almost surely, 2^27888542 is an apocalyptic number.

27888542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27888542 is a deficient number, since it is larger than the sum of its proper divisors (20599138).

27888542 is a wasteful number, since it uses less digits than its factorization.

27888542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656.

The product of its digits is 286720, while the sum is 44.

The square root of 27888542 is about 5280.9603293341. The cubic root of 27888542 is about 303.2554421696.

The spelling of 27888542 in words is "twenty-seven million, eight hundred eighty-eight thousand, five hundred forty-two".