4240861 has 4 divisors (see below), whose sum is σ = 4312800. Its totient is φ = 4168924.

The previous prime is 4240853. The next prime is 4240909. The reversal of 4240861 is 1680424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4240861 - 2³ = 4240853 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 (4240801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35881 + ... + 35998.

It is an arithmetic number, because the mean of its divisors is an integer number (1078200).

Almost surely, 2^4240861 is an apocalyptic number.

It is an amenable number.

4240861 is a deficient number, since it is larger than the sum of its proper divisors (71939).

4240861 is an equidigital number, since it uses as much as digits as its factorization.

4240861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71938.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4240861 is about 2059.3350868666. The cubic root of 4240861 is about 161.8644015959.

The spelling of 4240861 in words is "four million, two hundred forty thousand, eight hundred sixty-one".