27845742 has 16 divisors (see below), whose sum is σ = 57612240. Its totient is φ = 8961792.

The previous prime is 27845737. The next prime is 27845743. The reversal of 27845742 is 24754872.

27845742 is a modest number, since divided by 5742 gives 2784 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 27845742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27845743) by changing a digit.

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, 79843 + ... + 80190.

It is an arithmetic number, because the mean of its divisors is an integer number (3600765).

Almost surely, 2^27845742 is an apocalyptic number.

27845742 is an abundant number, since it is smaller than the sum of its proper divisors (29766498).

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

27845742 is a wasteful number, since it uses less digits than its factorization.

27845742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160067.

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

The square root of 27845742 is about 5276.9064801264. The cubic root of 27845742 is about 303.1002293430.

The spelling of 27845742 in words is "twenty-seven million, eight hundred forty-five thousand, seven hundred forty-two".