240452081 has 4 divisors (see below), whose sum is σ = 244527600. Its totient is φ = 236376564.

The previous prime is 240452059. The next prime is 240452083. The reversal of 240452081 is 180254042.

It is a happy number.

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 240452081 - 2²⁶ = 173343217 is a prime.

It is a super-2 number, since 2×240452081² = 115634406514461122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 240452081.

It is not an unprimeable number, because it can be changed into a prime (240452083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037671 + ... + 2037788.

It is an arithmetic number, because the mean of its divisors is an integer number (61131900).

Almost surely, 2^240452081 is an apocalyptic number.

It is an amenable number.

240452081 is a deficient number, since it is larger than the sum of its proper divisors (4075519).

240452081 is an equidigital number, since it uses as much as digits as its factorization.

240452081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075518.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 240452081 is about 15506.5173717376. The cubic root of 240452081 is about 621.8364566602.

The spelling of 240452081 in words is "two hundred forty million, four hundred fifty-two thousand, eighty-one".