27830138 has 24 divisors (see below), whose sum is σ = 50676192. Its totient is φ = 11407704.

The previous prime is 27830137. The next prime is 27830147. The reversal of 27830138 is 83103872.

It is not an unprimeable number, because it can be changed into a prime (27830137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3920 + ... + 8427.

It is an arithmetic number, because the mean of its divisors is an integer number (2111508).

Almost surely, 2^27830138 is an apocalyptic number.

27830138 is a deficient number, since it is larger than the sum of its proper divisors (22846054).

27830138 is a wasteful number, since it uses less digits than its factorization.

27830138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12386 (or 12379 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 27830138 is about 5275.4277551683. The cubic root of 27830138 is about 303.0436023765.

The spelling of 27830138 in words is "twenty-seven million, eight hundred thirty thousand, one hundred thirty-eight".