27448138 has 4 divisors (see below), whose sum is σ = 41172210. Its totient is φ = 13724068.

The previous prime is 27448133. The next prime is 27448151. The reversal of 27448138 is 83184472.

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

It can be written as a sum of positive squares in only one way, i.e., 26904969 + 543169 = 5187^2 + 737^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27448097 and 27448106.

It is not an unprimeable number, because it can be changed into a prime (27448133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6862033 + ... + 6862036.

Almost surely, 2^27448138 is an apocalyptic number.

27448138 is a deficient number, since it is larger than the sum of its proper divisors (13724072).

27448138 is a wasteful number, since it uses less digits than its factorization.

27448138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13724071.

The product of its digits is 43008, while the sum is 37.

The square root of 27448138 is about 5239.0970596086. The cubic root of 27448138 is about 301.6506713265.

The spelling of 27448138 in words is "twenty-seven million, four hundred forty-eight thousand, one hundred thirty-eight".