27242261 has 8 divisors (see below), whose sum is σ = 27618360. Its totient is φ = 26868672.

The previous prime is 27242239. The next prime is 27242269. The reversal of 27242261 is 16224272.

It can be written as a sum of positive squares in 4 ways, for example, as 6220036 + 21022225 = 2494^2 + 4585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27242261 - 2⁶ = 27242197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27242261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27242269) 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, 31511 + ... + 32363.

It is an arithmetic number, because the mean of its divisors is an integer number (3452295).

Almost surely, 2^27242261 is an apocalyptic number.

It is an amenable number.

27242261 is a deficient number, since it is larger than the sum of its proper divisors (376099).

27242261 is a wasteful number, since it uses less digits than its factorization.

27242261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255.

The product of its digits is 2688, while the sum is 26.

The square root of 27242261 is about 5219.4119400561. The cubic root of 27242261 is about 300.8945926579.

The spelling of 27242261 in words is "twenty-seven million, two hundred forty-two thousand, two hundred sixty-one".