240116857 has 4 divisors (see below), whose sum is σ = 254241396. Its totient is φ = 225992320.

The previous prime is 240116837. The next prime is 240116867. The reversal of 240116857 is 758611042.

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

It can be written as a sum of positive squares in 2 ways, for example, as 212459776 + 27657081 = 14576^2 + 5259^2 .

It is a cyclic number.

It is not a de Polignac number, because 240116857 - 2²³ = 231728249 is a prime.

It is a super-2 number, since 2×240116857² = 115312210031116898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240116837) 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, 7062244 + ... + 7062277.

It is an arithmetic number, because the mean of its divisors is an integer number (63560349).

Almost surely, 2^240116857 is an apocalyptic number.

It is an amenable number.

240116857 is a deficient number, since it is larger than the sum of its proper divisors (14124539).

240116857 is a wasteful number, since it uses less digits than its factorization.

240116857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14124538.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 240116857 is about 15495.7044693037. The cubic root of 240116857 is about 621.5473464555.

Adding to 240116857 its reverse (758611042), we get a palindrome (998727899).

The spelling of 240116857 in words is "two hundred forty million, one hundred sixteen thousand, eight hundred fifty-seven".