27685242 has 72 divisors (see below), whose sum is σ = 68515200. Its totient is φ = 8053344.

The previous prime is 27685199. The next prime is 27685253. The reversal of 27685242 is 24258672.

It is a junction number, because it is equal to n+sod(n) for n = 27685197 and 27685206.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57559 + ... + 58037.

It is an arithmetic number, because the mean of its divisors is an integer number (951600).

Almost surely, 2^27685242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27685242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34257600).

27685242 is an abundant number, since it is smaller than the sum of its proper divisors (40829958).

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

27685242 is a wasteful number, since it uses less digits than its factorization.

27685242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 516 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 27685242 is about 5261.6767289525. The cubic root of 27685242 is about 302.5167606769.

The spelling of 27685242 in words is "twenty-seven million, six hundred eighty-five thousand, two hundred forty-two".