27243888 has 40 divisors (see below), whose sum is σ = 80435328. Its totient is φ = 7783872.

The previous prime is 27243871. The next prime is 27243889. The reversal of 27243888 is 88834272.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27243889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40206 + ... + 40877.

Almost surely, 2^27243888 is an apocalyptic number.

27243888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27243888 is an abundant number, since it is smaller than the sum of its proper divisors (53191440).

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

27243888 is a wasteful number, since it uses less digits than its factorization.

27243888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81101 (or 81095 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 27243888 is about 5219.5677981994. The cubic root of 27243888 is about 300.9005826864.

The spelling of 27243888 in words is "twenty-seven million, two hundred forty-three thousand, eight hundred eighty-eight".