240492289 has 4 divisors (see below), whose sum is σ = 242328240. Its totient is φ = 238656340.

The previous prime is 240492283. The next prime is 240492293. The reversal of 240492289 is 982294042.

240492289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 240492289 - 2⁹ = 240491777 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240492283) 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, 917779 + ... + 918040.

It is an arithmetic number, because the mean of its divisors is an integer number (60582060).

Almost surely, 2^240492289 is an apocalyptic number.

It is an amenable number.

240492289 is a deficient number, since it is larger than the sum of its proper divisors (1835951).

240492289 is a wasteful number, since it uses less digits than its factorization.

240492289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835950.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 240492289 is about 15507.8138046599. The cubic root of 240492289 is about 621.8711155503.

The spelling of 240492289 in words is "two hundred forty million, four hundred ninety-two thousand, two hundred eighty-nine".