27243388 has 12 divisors (see below), whose sum is σ = 47712672. Its totient is φ = 13611200.

The previous prime is 27243353. The next prime is 27243407. The reversal of 27243388 is 88334272.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7956 + ... + 10852.

It is an arithmetic number, because the mean of its divisors is an integer number (3976056).

Almost surely, 2^27243388 is an apocalyptic number.

It is an amenable number.

27243388 is a deficient number, since it is larger than the sum of its proper divisors (20469284).

27243388 is a wasteful number, since it uses less digits than its factorization.

27243388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252 (or 5250 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 27243388 is about 5219.5199012936. The cubic root of 27243388 is about 300.8987418917.

It can be divided in two parts, 272 and 43388, that added together give a triangular number (43660 = T₂₉₅).

The spelling of 27243388 in words is "twenty-seven million, two hundred forty-three thousand, three hundred eighty-eight".