27238638 has 32 divisors (see below), whose sum is σ = 62555904. Its totient is φ = 7745472.

The previous prime is 27238621. The next prime is 27238639. The reversal of 27238638 is 83683272.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27238596 and 27238605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27238639) 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, 8106 + ... + 10962.

It is an arithmetic number, because the mean of its divisors is an integer number (1954872).

Almost surely, 2^27238638 is an apocalyptic number.

27238638 is an abundant number, since it is smaller than the sum of its proper divisors (35317266).

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

27238638 is a wasteful number, since it uses less digits than its factorization.

27238638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096.

The product of its digits is 96768, while the sum is 39.

The square root of 27238638 is about 5219.0648587654. The cubic root of 27238638 is about 300.8812532189.

The spelling of 27238638 in words is "twenty-seven million, two hundred thirty-eight thousand, six hundred thirty-eight".