240685845 has 16 divisors (see below), whose sum is σ = 386122560. Its totient is φ = 128024064.

The previous prime is 240685817. The next prime is 240685859. The reversal of 240685845 is 548586042.

It is not a de Polignac number, because 240685845 - 2¹¹ = 240683797 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 240685797 and 240685806.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15484 + ... + 26853.

It is an arithmetic number, because the mean of its divisors is an integer number (24132660).

Almost surely, 2^240685845 is an apocalyptic number.

It is an amenable number.

240685845 is a deficient number, since it is larger than the sum of its proper divisors (145436715).

240685845 is a wasteful number, since it uses less digits than its factorization.

240685845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42724.

The product of its (nonzero) digits is 307200, while the sum is 42.

The square root of 240685845 is about 15514.0531454549. The cubic root of 240685845 is about 622.0379048319.

The spelling of 240685845 in words is "two hundred forty million, six hundred eighty-five thousand, eight hundred forty-five".