240105861 has 12 divisors (see below), whose sum is σ = 347626188. Its totient is φ = 159698304.

The previous prime is 240105829. The next prime is 240105863. The reversal of 240105861 is 168501042.

It can be written as a sum of positive squares in 2 ways, for example, as 8122500 + 231983361 = 2850^2 + 15231^2 .

It is not a de Polignac number, because 240105861 - 2⁵ = 240105829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240105863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26910 + ... + 34703.

It is an arithmetic number, because the mean of its divisors is an integer number (28968849).

Almost surely, 2^240105861 is an apocalyptic number.

It is an amenable number.

240105861 is a deficient number, since it is larger than the sum of its proper divisors (107520327).

240105861 is a wasteful number, since it uses less digits than its factorization.

240105861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62052 (or 62049 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 240105861 is about 15495.3496572359. The cubic root of 240105861 is about 621.5378585211.

The spelling of 240105861 in words is "two hundred forty million, one hundred five thousand, eight hundred sixty-one".