27240401 has 4 divisors (see below), whose sum is σ = 27820032. Its totient is φ = 26660772.

The previous prime is 27240383. The next prime is 27240403. The reversal of 27240401 is 10404272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27240401 - 2⁶ = 27240337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27240403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289745 + ... + 289838.

It is an arithmetic number, because the mean of its divisors is an integer number (6955008).

Almost surely, 2^27240401 is an apocalyptic number.

It is an amenable number.

27240401 is a deficient number, since it is larger than the sum of its proper divisors (579631).

27240401 is an equidigital number, since it uses as much as digits as its factorization.

27240401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579630.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 27240401 is about 5219.2337560220. The cubic root of 27240401 is about 300.8877445151.

Adding to 27240401 its reverse (10404272), we get a palindrome (37644673).

The spelling of 27240401 in words is "twenty-seven million, two hundred forty thousand, four hundred one".