240641677 has 8 divisors (see below), whose sum is σ = 245588760. Its totient is φ = 235709760.

The previous prime is 240641659. The next prime is 240641683. The reversal of 240641677 is 776146042.

It can be written as a sum of positive squares in 4 ways, for example, as 25462116 + 215179561 = 5046^2 + 14669^2 .

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 240641677 - 2⁷ = 240641549 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 (240645677) 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 7 ways as a sum of consecutive naturals, for example, 31599 + ... + 38467.

It is an arithmetic number, because the mean of its divisors is an integer number (30698595).

Almost surely, 2^240641677 is an apocalyptic number.

It is an amenable number.

240641677 is a deficient number, since it is larger than the sum of its proper divisors (4947083).

240641677 is an equidigital number, since it uses as much as digits as its factorization.

240641677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 240641677 is about 15512.6295965578. The cubic root of 240641677 is about 621.9998526690. Note that the first 3 decimals are identical.

The spelling of 240641677 in words is "two hundred forty million, six hundred forty-one thousand, six hundred seventy-seven".