240685149 has 8 divisors (see below), whose sum is σ = 322328160. Its totient is φ = 159749456.

The previous prime is 240685117. The next prime is 240685153. The reversal of 240685149 is 941586042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240685149 - 2⁵ = 240685117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240680149) 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 7 ways as a sum of consecutive naturals, for example, 176034 + ... + 177395.

It is an arithmetic number, because the mean of its divisors is an integer number (40291020).

Almost surely, 2^240685149 is an apocalyptic number.

It is an amenable number.

240685149 is a deficient number, since it is larger than the sum of its proper divisors (81643011).

240685149 is a wasteful number, since it uses less digits than its factorization.

240685149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353659.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 240685149 is about 15514.0307141632. The cubic root of 240685149 is about 622.0373052414.

The spelling of 240685149 in words is "two hundred forty million, six hundred eighty-five thousand, one hundred forty-nine".