240830857 has 8 divisors (see below), whose sum is σ = 256144896. Its totient is φ = 225644352.

The previous prime is 240830809. The next prime is 240830879. The reversal of 240830857 is 758038042.

240830857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 240830857 - 2⁷ = 240830729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240836857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27973 + ... + 35554.

It is an arithmetic number, because the mean of its divisors is an integer number (32018112).

Almost surely, 2^240830857 is an apocalyptic number.

It is an amenable number.

240830857 is a deficient number, since it is larger than the sum of its proper divisors (15314039).

240830857 is a wasteful number, since it uses less digits than its factorization.

240830857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63767.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 240830857 is about 15518.7260108554. The cubic root of 240830857 is about 622.1628046449.

Adding to 240830857 its reverse (758038042), we get a palindrome (998868899).

The spelling of 240830857 in words is "two hundred forty million, eight hundred thirty thousand, eight hundred fifty-seven".