240985849 has 4 divisors (see below), whose sum is σ = 259523236. Its totient is φ = 222448464.

The previous prime is 240985837. The next prime is 240985861. The reversal of 240985849 is 948589042.

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

It is an interprime number because it is at equal distance from previous prime (240985837) and next prime (240985861).

It can be written as a sum of positive squares in 2 ways, for example, as 19184400 + 221801449 = 4380^2 + 14893^2 .

It is a cyclic number.

It is not a de Polignac number, because 240985849 - 2⁵ = 240985817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240985049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9268674 + ... + 9268699.

It is an arithmetic number, because the mean of its divisors is an integer number (64880809).

Almost surely, 2^240985849 is an apocalyptic number.

It is an amenable number.

240985849 is a deficient number, since it is larger than the sum of its proper divisors (18537387).

240985849 is a wasteful number, since it uses less digits than its factorization.

240985849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18537386.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 240985849 is about 15523.7189165483. The cubic root of 240985849 is about 622.2962448795.

The spelling of 240985849 in words is "two hundred forty million, nine hundred eighty-five thousand, eight hundred forty-nine".