27243972 has 48 divisors (see below), whose sum is σ = 80725120. Its totient is φ = 7783776.

The previous prime is 27243971. The next prime is 27244031. The reversal of 27243972 is 27934272.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is not an unprimeable number, because it can be changed into a prime (27243971) 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, 17263 + ... + 18774.

Almost surely, 2^27243972 is an apocalyptic number.

It is an amenable number.

27243972 is an abundant number, since it is smaller than the sum of its proper divisors (53481148).

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

27243972 is a wasteful number, since it uses less digits than its factorization.

27243972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36057 (or 36049 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 27243972 is about 5219.5758448364. The cubic root of 27243972 is about 300.9008919377.

It can be divided in two parts, 272 and 43972, that added together give a palindrome (44244).

The spelling of 27243972 in words is "twenty-seven million, two hundred forty-three thousand, nine hundred seventy-two".