27272642 has 4 divisors (see below), whose sum is σ = 40908966. Its totient is φ = 13636320.

The previous prime is 27272633. The next prime is 27272647. The reversal of 27272642 is 24627272.

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., 26925721 + 346921 = 5189^2 + 589^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27272599 and 27272608.

It is not an unprimeable number, because it can be changed into a prime (27272647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6818159 + ... + 6818162.

Almost surely, 2^27272642 is an apocalyptic number.

27272642 is a deficient number, since it is larger than the sum of its proper divisors (13636324).

27272642 is a wasteful number, since it uses less digits than its factorization.

27272642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13636323.

The product of its digits is 18816, while the sum is 32.

The square root of 27272642 is about 5222.3215144225. The cubic root of 27272642 is about 301.0064052382.

The spelling of 27272642 in words is "twenty-seven million, two hundred seventy-two thousand, six hundred forty-two".