240989005 has 4 divisors (see below), whose sum is σ = 289186812. Its totient is φ = 192791200.

The previous prime is 240989003. The next prime is 240989053. The reversal of 240989005 is 500989042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 137499076 + 103489929 = 11726^2 + 10173^2 .

It is not a de Polignac number, because 240989005 - 2¹ = 240989003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240989003) 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, 24098896 + ... + 24098905.

It is an arithmetic number, because the mean of its divisors is an integer number (72296703).

Almost surely, 2^240989005 is an apocalyptic number.

It is an amenable number.

240989005 is a deficient number, since it is larger than the sum of its proper divisors (48197807).

240989005 is an equidigital number, since it uses as much as digits as its factorization.

240989005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48197806.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 240989005 is about 15523.8205671156. The cubic root of 240989005 is about 622.2989614407.

Adding to 240989005 its sum of digits (37), we get a palindrome (240989042).

The spelling of 240989005 in words is "two hundred forty million, nine hundred eighty-nine thousand, five".